CVE-2025-22024

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 2025-04-16. NVD baseline CVSS 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3

Also known asEUVD-2025-11269 (ENISA EUVD) · GHSA-6cvc-553h-v3j8 (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:

nfsd: fix management of listener transports

Currently, when no active threads are running, a root user using nfsdctl command can try to remove a particular listener from the list of previously added ones, then start the server by increasing the number of threads, it leads to the following problem:

[ 158.835354] refcount_t: addition on 0; use-after-free. [ 158.835603] WARNING: CPU: 2 PID: 9145 at lib/refcount.c:25 refcount_warn_saturate+0x160/0x1a0 [ 158.836017] Modules linked in: rpcrdma rdma_cm iw_cm ib_cm ib_core nfsd auth_rpcgss nfs_acl lockd grace overlay isofs uinput snd_seq_dummy snd_hrtimer nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 rfkill ip_set nf_tables qrtr sunrpc vfat fat uvcvideo videobuf2_vmalloc videobuf2_memops uvc videobuf2_v4l2 videodev videobuf2_common snd_hda_codec_generic mc e1000e snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hda_core snd_hwdep snd_seq snd_seq_device snd_pcm snd_timer snd soundcore sg loop dm_multipath dm_mod nfnetlink vsock_loopback vmw_vsock_virtio_transport_common vmw_vsock_vmci_transport vmw_vmci vsock xfs libcrc32c crct10dif_ce ghash_ce vmwgfx sha2_ce sha256_arm64 sr_mod sha1_ce cdrom nvme drm_client_lib drm_ttm_helper ttm nvme_core drm_kms_helper nvme_auth drm fuse [ 158.840093] CPU: 2 UID: 0 PID: 9145 Comm: nfsd Kdump: loaded Tainted: G B W 6.13.0-rc6+ #7 [ 158.840624] Tainted: [B]=BAD_PAGE, [W]=WARN [ 158.840802] Hardware name: VMware, Inc. VMware20,1/VBSA, BIOS VMW201.00V.24006586.BA64.2406042154 06/04/2024 [ 158.841220] pstate: 61400005 (nZCv daif +PAN -UAO -TCO +DIT -SSBS BTYPE=--) [ 158.841563] pc : refcount_warn_saturate+0x160/0x1a0 [ 158.841780] lr : refcount_warn_saturate+0x160/0x1a0 [ 158.842000] sp : ffff800089be7d80 [ 158.842147] x29: ffff800089be7d80 x28: ffff00008e68c148 x27: ffff00008e68c148 [ 158.842492] x26: ffff0002e3b5c000 x25: ffff600011cd1829 x24: ffff00008653c010 [ 158.842832] x23: ffff00008653c000 x22: 1fffe00011cd1829 x21: ffff00008653c028 [ 158.843175] x20: 0000000000000002 x19: ffff00008653c010 x18: 0000000000000000 [ 158.843505] x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 [ 158.843836] x14: 0000000000000000 x13: 0000000000000001 x12: ffff600050a26493 [ 158.844143] x11: 1fffe00050a26492 x10: ffff600050a26492 x9 : dfff800000000000 [ 158.844475] x8 : 00009fffaf5d9b6e x7 : ffff000285132493 x6 : 0000000000000001 [ 158.844823] x5 : ffff000285132490 x4 : ffff600050a26493 x3 : ffff8000805e72bc [ 158.845174] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff000098588000 [ 158.845528] Call trace: [ 158.845658] refcount_warn_saturate+0x160/0x1a0 (P) [ 158.845894] svc_recv+0x58c/0x680 [sunrpc] [ 158.846183] nfsd+0x1fc/0x348 [nfsd] [ 158.846390] kthread+0x274/0x2f8 [ 158.846546] ret_from_fork+0x10/0x20 [ 158.846714] ---[ end trace 0000000000000000 ]---

nfsd_nl_listener_set_doit() would manipulate the list of transports of server's sv_permsocks and close the specified listener but the other list of transports (server's sp_xprts list) would not be changed leading to the problem above.

Instead, determined if the nfsdctl is trying to remove a listener, in which case, delete all the existing listener transports and re-create all-but-the-removed ones.

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 SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (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
9th
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 (model v2026.06.15, score date 2026-10-25). 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 every mission impact level.CISA BOD 26-04: 60 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 every mission impact level.

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

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (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)60 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 Vulnrichment) · Technical impact partial (CISA Vulnrichment). 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

April 16, 2025

Last Modified

October 1, 2025

References (4)

Patch Availability(8)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-virtual-hwe-24.04-edge (6.11.0-28.28) @ oracular2026-10-24ubuntu
ubuntulinux-tools-oracle-64k (6.14.0-1007.7) @ plucky2026-10-24ubuntu
ubuntulinux-tools-azure-6.11 (6.11.0-1018.18) @ oracular2026-10-24ubuntu
ubuntulinux-tools-lowlatency-64k (6.11.0-1015.16) @ oracular2026-10-24ubuntu
ubuntulinux-tools-azure (6.14.0-1007.7) @ plucky2026-10-24ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.14.0-22.22) @ plucky2026-10-24ubuntu
ubuntulinux-tools-oem-24.04b (6.11.0-1024.24) @ noble2026-10-24ubuntu
linuxKernel @ 6.12.23 (fixes >=6.10.0)—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

(2 across 2 ecosystems)
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.12.25-1: fixed in 6.12.25-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.12.25-1: fixed in 6.12.25-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(7)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 7× in last 7d / 38× 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 193 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 97 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 16:42 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  2. 2026-11-01 16:32 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  3. 2026-10-31 16:30 UTCEPSS rescoreEPSS 0.2% · 9th percentile
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  5. 2026-10-29 16:31 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  6. 2026-10-28 16:30 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  7. 2026-10-27 16:30 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  8. 2026-10-26 16:29 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  9. 2026-10-25 16:42 UTCEG score recompute
  10. 2026-10-25 16:31 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  11. 2026-10-24 16:30 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  12. 2026-10-24 01:10 UTCEG score recompute
  13. 2026-10-24 01:10 UTCVendor advisory
  14. 2026-10-24 01:10 UTCGHSA enrichmentGHSA-6cvc-553h-v3j8 · GitHub CVSS 5.5
  15. 2026-10-23 16:30 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  16. 2026-10-22 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  17. 2026-10-21 16:30 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  18. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
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  20. 2026-10-18 16:30 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  21. 2026-10-18 05:45 UTCEG score recompute
  22. 2026-10-17 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  23. 2026-10-16 16:38 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  24. 2026-10-15 16:30 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  25. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
Show 71 more
  1. 2026-10-13 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  2. 2026-10-12 17:19 UTCEG score recompute
  3. 2026-10-11 20:51 UTCEG score recompute
  4. 2026-10-11 19:01 UTCEG score recompute
  5. 2026-10-11 15:41 UTCEG score recompute
  6. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  7. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  8. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  9. 2026-10-08 17:09 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  10. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  11. 2026-10-06 15:16 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  12. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  13. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  14. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  15. 2026-10-02 17:10 UTCOSV refresh
  16. 2026-10-02 16:26 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  17. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  18. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  19. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  20. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  21. 2026-09-26 00:24 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  22. 2026-09-24 14:02 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  23. 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  24. 2026-09-22 14:47 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  25. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  26. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  27. 2026-09-16 14:06 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  28. 2026-09-16 05:13 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  29. 2026-09-15 03:09 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  30. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  31. 2026-09-13 14:54 UTCOSV refresh
  32. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.2% · 9th percentile
  33. 2026-09-11 14:51 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  34. 2026-09-11 09:35 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  35. 2026-09-10 09:33 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  36. 2026-09-08 21:59 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  37. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  38. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  39. 2026-09-05 15:28 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  40. 2026-09-04 05:05 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  41. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  42. 2026-09-01 13:52 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  43. 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  44. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  45. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  46. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  47. 2026-08-25 16:10 UTCOSV refresh
  48. 2026-08-25 13:47 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  49. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  50. 2026-08-20 22:54 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  51. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  52. 2026-08-18 13:47 UTCEPSS rescoreEPSS 0.2% · 8th percentile
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  55. 2026-08-16 02:13 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  56. 2026-08-15 01:29 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  57. 2026-08-13 21:59 UTCEPSS rescoreEPSS 0.2% · 8th percentile
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  59. 2026-08-10 23:59 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  60. 2026-08-09 13:45 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  61. 2026-08-09 08:27 UTCOSV refresh
  62. 2026-08-07 16:26 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  63. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  64. 2026-08-05 19:16 UTCEPSS rescoreEPSS 0.2% · 8th percentile
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  70. 2026-07-30 16:27 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  71. 2026-07-30 01:29 UTCEPSS rescoreEPSS 0.2% · 8th percentile

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Frequently asked(5)

What is CVE-2025-22024?
CVE-2025-22024 is a medium-severity vulnerability; its CVE record was published on April 16, 2025. In the Linux kernel, the following vulnerability has been resolved: nfsd: fix management of listener transports Currently, when no active threads are running, a root user using nfsdctl command can try to remove a particular listener from the list of previously added ones, then start the server by…
When was the CVE record for CVE-2025-22024 published?
The CVE record for CVE-2025-22024 was published on April 16, 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 1, 2025; the record at its source may have been updated since.
Is CVE-2025-22024 actively exploited?
CVE-2025-22024 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (9th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-22024?
CVE-2025-22024 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2025-22024?
A fix for CVE-2025-22024 is available: update to the fixed version the vendor names in its advisory.

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