CVE-2025-21888

MEDIUMNVD 5.55.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 5.5 from GitHub Security Advisory published 2025-03-27. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 5 sources updated this week

Also known asEUVD-2025-8470 (ENISA EUVD) · GHSA-rg83-2j3j-4hmc (GitHub Security Advisories)Source: ENISA EUVD

5.5EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

RDMA/mlx5: Fix a WARN during dereg_mr for DM type

Memory regions (MR) of type DM (device memory) do not have an associated umem.

In the __mlx5_ib_dereg_mr() -> mlx5_free_priv_descs() flow, the code incorrectly takes the wrong branch, attempting to call dma_unmap_single() on a DMA address that is not mapped.

This results in a WARN [1], as shown below.

The issue is resolved by properly accounting for the DM type and ensuring the correct branch is selected in mlx5_free_priv_descs().

[1] WARNING: CPU: 12 PID: 1346 at drivers/iommu/dma-iommu.c:1230 iommu_dma_unmap_page+0x79/0x90 Modules linked in: ip6table_mangle ip6table_nat ip6table_filter ip6_tables iptable_mangle xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xt_addrtype iptable_nat nf_nat br_netfilter rpcsec_gss_krb5 auth_rpcgss oid_registry ovelay rpcrdma rdma_ucm ib_iser libiscsi scsi_transport_iscsi ib_umad rdma_cm ib_ipoib iw_cm ib_cm mlx5_ib ib_uverbs ib_core fuse mlx5_core CPU: 12 UID: 0 PID: 1346 Comm: ibv_rc_pingpong Not tainted 6.12.0-rc7+ #1631 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014 RIP: 0010:iommu_dma_unmap_page+0x79/0x90 Code: 2b 49 3b 29 72 26 49 3b 69 08 73 20 4d 89 f0 44 89 e9 4c 89 e2 48 89 ee 48 89 df 5b 5d 41 5c 41 5d 41 5e 41 5f e9 07 b8 88 ff <0f> 0b 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc 66 0f 1f 44 00 RSP: 0018:ffffc90001913a10 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88810194b0a8 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001 RBP: ffff88810194b0a8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000 FS: 00007f537abdd740(0000) GS:ffff88885fb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f537aeb8000 CR3: 000000010c248001 CR4: 0000000000372eb0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace:

? __warn+0x84/0x190 ? iommu_dma_unmap_page+0x79/0x90 ? report_bug+0xf8/0x1c0 ? handle_bug+0x55/0x90 ? exc_invalid_op+0x13/0x60 ? asm_exc_invalid_op+0x16/0x20 ? iommu_dma_unmap_page+0x79/0x90 dma_unmap_page_attrs+0xe6/0x290 mlx5_free_priv_descs+0xb0/0xe0 [mlx5_ib] __mlx5_ib_dereg_mr+0x37e/0x520 [mlx5_ib] ? _raw_spin_unlock_irq+0x24/0x40 ? wait_for_completion+0xfe/0x130 ? rdma_restrack_put+0x63/0xe0 [ib_core] ib_dereg_mr_user+0x5f/0x120 [ib_core] ? lock_release+0xc6/0x280 destroy_hw_idr_uobject+0x1d/0x60 [ib_uverbs] uverbs_destroy_uobject+0x58/0x1d0 [ib_uverbs] uobj_destroy+0x3f/0x70 [ib_uverbs] ib_uverbs_cmd_verbs+0x3e4/0xbb0 [ib_uverbs] ? __pfx_uverbs_destroy_def_handler+0x10/0x10 [ib_uverbs] ? lock_acquire+0xc1/0x2f0 ? ib_uverbs_ioctl+0xcb/0x170 [ib_uverbs] ? ib_uverbs_ioctl+0x116/0x170 [ib_uverbs] ? lock_release+0xc6/0x280 ib_uverbs_ioctl+0xe7/0x170 [ib_uverbs] ? ib_uverbs_ioctl+0xcb/0x170 [ib_uverbs] __x64_sys_ioctl+0x1b0/0xa70 do_syscall_64+0x6b/0x140 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7f537adaf17b Code: 0f 1e fa 48 8b 05 1d ad 0c 00 64 c7 00 26 00 00 00 48 c7 c0 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa b8 10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d ed ac 0c 00 f7 d8 64 89 01 48 RSP: 002b:00007ffff218f0b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007ffff218f1d8 RCX: 00007f537adaf17b RDX: 00007ffff218f1c0 RSI: 00000000c0181b01 RDI: 0000000000000003 RBP: 00007ffff218f1a0 R08: 00007f537aa8d010 R09: 0000561ee2e4f270 R10: 00007f537aace3a8 R11: 0000000000000246 R12: 00007ffff218f190 R13: 000000000000001c R14: 0000561ee2e4d7c0 R15: 00007ffff218f450

CVSS v3
5.5
EG Score
5.5MEDIUMmedium confidence
EG Risk
25
EG Risk 25/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity55% × 45%
Impact severity (EG Severity): CVSS 5.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's BOD 26-04 default: no one has published Automatable for this CVE, and CISA treats it as “no” for a CVE not in KEV.
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
13th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (5.5): severity, escalated by confirmed exploitation. This CVE's 5.5 is its impact severity (EG Severity), not escalated.

EG Severity
5.5 MEDIUMCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS. FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (no CISA value, KEV listing or exploit code on record) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). EchelonGraph holds no SSVC assessment of this CVE from CISA: none of these inputs is from Vulnrichment. EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA's BOD 26-04 default) · Technical impact total (CISA's BOD 26-04 default). Where an input reads “CISA's BOD 26-04 default”, no one has published it for this CVE, and CISA's implementation guidance says: “If “Automatable” and “Technical Impact” information items about a CVE ID are not available and the CVE ID is not in the KEV Catalog, CISA will treat its values as “no” and “total,” respectively, until CISA or a third party provides metadata about the CVE ID. CISA will always provide the Vulnrichment data for a CVE ID listed in the KEV Catalog.” Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

March 27, 2025

Last Modified

October 30, 2026

Advisory Details (5)

Auto-updated Oct 30, 2026
Patch available.
Web page

RDMA/mlx5: Fix a WARN during dereg_mr for DM type - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/abc7b3f1f056d69a8f11d6dceecc0c9549ace770
Web page

RDMA/mlx5: Fix a WARN during dereg_mr for DM type - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f1298cad47ae29828c5c5be77e733ccfcaef6a7f
Web page

RDMA/mlx5: Fix a WARN during dereg_mr for DM type - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/0bd34bdd468e93a779c403de3cf7d43ee633b3e0
Web page

RDMA/mlx5: Fix a WARN during dereg_mr for DM type - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/6e59f56161cccc437d665212d5c3ea3f1c3f5a1f
Web page

RDMA/mlx5: Fix a WARN during dereg_mr for DM type - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8fe3c674ef289cdc0760fe787e7584d805ab9301

Vendor Advisories for CVE-2025-21888(3)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(29)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-tools-nvidia-lowlatency-64k (6.8.0-1028.31.1) @ noble2026-10-30ubuntu
ubuntulinux-tools-realtime-6.8.1 (6.8.1-1034.35) @ noble2026-10-30ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.11.0-26.26) @ oracular2026-10-30ubuntu
ubuntulinux-tools-oracle-64k (6.11.0-1016.17) @ oracular2026-10-30ubuntu
ubuntulinux-tools-gcp-edge (6.8.0-1040.42~22.04.1) @ jammy2026-10-30ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.15.0-1056 (5.15.0-1056.60) @ jammy2026-10-30ubuntu
ubuntulinux-tools-gcp-fips-5.15 (5.15.0.1092.82) @ jammy2026-10-30ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-84.84~22.04.1) @ jammy2026-10-30ubuntu
ubuntulinux-tools-ibm-lts-24.04 (6.8.0-1037.37) @ noble2026-10-30ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1038.44) @ noble2026-10-30ubuntu
ubuntulinux-tools-oracle-lts-24.04 (6.8.0-1037.38) @ noble2026-10-30ubuntu
ubuntulinux-tools-oracle-edge (5.15.0.1090.96~20.04.1) @ focal2026-10-30ubuntu
ubuntulinux-tools-azure-fips-5.15 (5.15.0.1096.81) @ jammy2026-10-30ubuntu
ubuntulinux-tools-realtime-hwe-22.04 (6.8.1-1034.35~22.04.1) @ jammy2026-10-30ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1037.38~22.04.1) @ jammy2026-10-30ubuntu
ubuntulinux-tools-nvidia-tegra-igx-rt-5.15 (5.15.0.1034.36) @ jammy2026-10-30ubuntu
ubuntulinux-tools-raspi-realtime-6.8 (6.8.0-2031.32) @ noble2026-10-30ubuntu
ubuntulinux-tools-aws (6.11.0-1014.15) @ oracular2026-10-30ubuntu
ubuntulinux-tools-azure-nvidia (6.8.0-1016.17) @ noble2026-10-30ubuntu
ubuntulinux-virtual-6.8 (6.8.0-84.84) @ noble2026-10-30ubuntu
ubuntulinux-tools-azure-lts-22.04 (5.15.0.1096.94) @ jammy2026-10-30ubuntu
ubuntulinux-tools-raspi-6.8 (6.8.0-1039.43) @ noble2026-10-30ubuntu
ubuntulinux-tools-realtime-5.15 (5.15.0.1092.96) @ jammy2026-10-30ubuntu
ubuntulinux-tools-kvm-5.15 (5.15.0.1088.84) @ jammy2026-10-30ubuntu
ubuntulinux-tools-azure-edge (5.15.0.1096.105~20.04.1) @ focal2026-10-30ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-85.85~22.04.1) @ jammy2026-10-30ubuntu
redhatkernel-0:5.14.0-570.12.1.el9_62025-05-13redhat
linuxKernel @ 6.12.18 (fixes >=5.13.0)—osv
linuxKernel @ 6.6.160 (fixes >=5.13.0)—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 7.2~rc7-1~exp1 (350 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.12.19-1: fixed in 6.12.19-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.12.19-1: fixed in 6.12.19-1
—

Additional Vendor Advisories

(23)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 13× in last 7d / 49× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 96 of 205 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 4 repeat rows among the latest 100 are merged into the row they repeat. The 109 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:32 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  2. 2026-10-31 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  3. 2026-10-30 16:32 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  4. 2026-10-30 13:37 UTCVendor advisory
  5. 2026-10-30 13:37 UTCGHSA enrichmentGHSA-rg83-2j3j-4hmc · GitHub CVSS 5.5
  6. 2026-10-30 12:32 UTCEG score recompute
  7. 2026-10-30 12:32 UTCVendor advisory
  8. 2026-10-30 12:32 UTCGHSA enrichmentGHSA-rg83-2j3j-4hmc · GitHub CVSS 5.5
  9. 2026-10-29 16:31 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  10. 2026-10-29 07:55 UTCOSV refresh
  11. 2026-10-28 16:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  12. 2026-10-27 16:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  13. 2026-10-26 16:29 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  14. 2026-10-25 16:42 UTCEG score recompute
  15. 2026-10-25 16:31 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  16. 2026-10-24 16:30 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  17. 2026-10-23 16:30 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  18. 2026-10-22 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  19. 2026-10-21 16:30 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  20. 2026-10-21 13:54 UTCVendor advisory
  21. 2026-10-21 13:54 UTCGHSA enrichmentGHSA-rg83-2j3j-4hmc · GitHub CVSS 5.5
  22. 2026-10-21 13:01 UTCVendor advisory
  23. 2026-10-21 13:01 UTCGHSA enrichmentGHSA-rg83-2j3j-4hmc · GitHub CVSS 5.5
  24. 2026-10-21 12:32 UTCEG score recompute
  25. 2026-10-21 12:32 UTCVendor advisory
Show 71 more
  1. 2026-10-21 12:31 UTCGHSA enrichmentGHSA-rg83-2j3j-4hmc · GitHub CVSS 5.5
  2. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  3. 2026-10-19 16:30 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  4. 2026-10-18 16:30 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  5. 2026-10-18 05:46 UTCEG score recompute
  6. 2026-10-17 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  7. 2026-10-16 16:38 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  8. 2026-10-15 16:30 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  9. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  10. 2026-10-13 16:32 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  11. 2026-10-12 17:19 UTCEG score recompute
  12. 2026-10-12 16:32 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  13. 2026-10-11 20:51 UTCEG score recompute
  14. 2026-10-11 19:01 UTCEG score recompute
  15. 2026-10-11 15:41 UTCEG score recompute
  16. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  17. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  18. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  19. 2026-10-08 17:09 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  20. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  21. 2026-10-06 15:16 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  22. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  23. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  24. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  25. 2026-10-02 19:10 UTCOSV refresh
  26. 2026-10-02 16:26 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  27. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  28. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  29. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  30. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  31. 2026-09-26 00:24 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  32. 2026-09-24 14:02 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  33. 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  34. 2026-09-22 14:47 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  35. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  36. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  37. 2026-09-16 14:06 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  38. 2026-09-16 05:13 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  39. 2026-09-15 03:09 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  40. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  41. 2026-09-13 16:43 UTCOSV refresh
  42. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  43. 2026-09-11 14:51 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  44. 2026-09-11 09:35 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  45. 2026-09-10 09:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  46. 2026-09-08 21:59 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  47. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  48. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  49. 2026-09-05 15:28 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  50. 2026-09-04 05:05 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  51. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  52. 2026-09-01 13:52 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  53. 2026-09-01 04:38 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  54. 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  55. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  56. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  57. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  58. 2026-08-25 18:09 UTCOSV refresh
  59. 2026-08-25 13:47 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  60. 2026-08-23 00:18 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  61. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  62. 2026-08-20 22:54 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  63. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  64. 2026-08-18 13:47 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  65. 2026-08-17 13:46 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  66. 2026-08-16 14:55 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  67. 2026-08-16 02:13 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  68. 2026-08-15 01:29 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  69. 2026-08-13 21:59 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  70. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  71. 2026-08-10 23:59 UTCEPSS rescoreEPSS 0.2% · 7th percentile

Related CVEs(same vendor)

Frequently asked(5)

What is CVE-2025-21888?
CVE-2025-21888 is a medium-severity vulnerability; its CVE record was published on March 27, 2025. In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Fix a WARN during dereg_mr for DM type Memory regions (MR) of type DM (device memory) do not have an associated umem. In the __mlx5_ib_dereg_mr() -> mlx5_free_priv_descs() flow, the code incorrectly takes the wrong…
When was the CVE record for CVE-2025-21888 published?
The CVE record for CVE-2025-21888 was published on March 27, 2025. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 30, 2026; the record at its source may have been updated since.
Is CVE-2025-21888 actively exploited?
CVE-2025-21888 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (13th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-21888?
CVE-2025-21888 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2025-21888?
A fix for CVE-2025-21888 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2025-21888 are linked in the Vendor Advisories panel on this page.

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