CVE-2025-38455

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 2025-07-25. 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-2025-22686 (ENISA EUVD) · GHSA-4j4q-hxqh-v4q9 (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:

KVM: SVM: Reject SEV{-ES} intra host migration if vCPU creation is in-flight

Reject migration of SEV{-ES} state if either the source or destination VM is actively creating a vCPU, i.e. if kvm_vm_ioctl_create_vcpu() is in the section between incrementing created_vcpus and online_vcpus. The bulk of vCPU creation runs _outside_ of kvm->lock to allow creating multiple vCPUs in parallel, and so sev_info.es_active can get toggled from false=>true in the destination VM after (or during) svm_vcpu_create(), resulting in an SEV{-ES} VM effectively having a non-SEV{-ES} vCPU.

The issue manifests most visibly as a crash when trying to free a vCPU's NULL VMSA page in an SEV-ES VM, but any number of things can go wrong.

BUG: unable to handle page fault for address: ffffebde00000000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: Oops: 0000 [#1] SMP KASAN NOPTI CPU: 227 UID: 0 PID: 64063 Comm: syz.5.60023 Tainted: G U O 6.15.0-smp-DEV #2 NONE Tainted: [U]=USER, [O]=OOT_MODULE Hardware name: Google, Inc. Arcadia_IT_80/Arcadia_IT_80, BIOS 12.52.0-0 10/28/2024 RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:206 [inline] RIP: 0010:arch_test_bit arch/x86/include/asm/bitops.h:238 [inline] RIP: 0010:_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:142 [inline] RIP: 0010:PageHead include/linux/page-flags.h:866 [inline] RIP: 0010:___free_pages+0x3e/0x120 mm/page_alloc.c:5067 Code: <49> f7 06 40 00 00 00 75 05 45 31 ff eb 0c 66 90 4c 89 f0 4c 39 f0 RSP: 0018:ffff8984551978d0 EFLAGS: 00010246 RAX: 0000777f80000001 RBX: 0000000000000000 RCX: ffffffff918aeb98 RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffebde00000000 RBP: 0000000000000000 R08: ffffebde00000007 R09: 1ffffd7bc0000000 R10: dffffc0000000000 R11: fffff97bc0000001 R12: dffffc0000000000 R13: ffff8983e19751a8 R14: ffffebde00000000 R15: 1ffffd7bc0000000 FS: 0000000000000000(0000) GS:ffff89ee661d3000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffebde00000000 CR3: 000000793ceaa000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000b5f DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: sev_free_vcpu+0x413/0x630 arch/x86/kvm/svm/sev.c:3169 svm_vcpu_free+0x13a/0x2a0 arch/x86/kvm/svm/svm.c:1515 kvm_arch_vcpu_destroy+0x6a/0x1d0 arch/x86/kvm/x86.c:12396 kvm_vcpu_destroy virt/kvm/kvm_main.c:470 [inline] kvm_destroy_vcpus+0xd1/0x300 virt/kvm/kvm_main.c:490 kvm_arch_destroy_vm+0x636/0x820 arch/x86/kvm/x86.c:12895 kvm_put_kvm+0xb8e/0xfb0 virt/kvm/kvm_main.c:1310 kvm_vm_release+0x48/0x60 virt/kvm/kvm_main.c:1369 __fput+0x3e4/0x9e0 fs/file_table.c:465 task_work_run+0x1a9/0x220 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x7f0/0x25b0 kernel/exit.c:953 do_group_exit+0x203/0x2d0 kernel/exit.c:1102 get_signal+0x1357/0x1480 kernel/signal.c:3034 arch_do_signal_or_restart+0x40/0x690 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x67/0xb0 kernel/entry/common.c:218 do_syscall_64+0x7c/0x150 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7f87a898e969 Modules linked in: gq(O) gsmi: Log Shutdown Reason 0x03 CR2: ffffebde00000000 ---[ end trace 0000000000000000 ]---

Deliberately don't check for a NULL VMSA when freeing the vCPU, as crashing the host is likely desirable due to the VMSA being consumed by hardware. E.g. if KVM manages to allow VMRUN on the vCPU, hardware may read/write a bogus VMSA page. Accessing P ---truncated---

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 low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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
8th
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 (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (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)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 Vulnrichment) · Technical impact total (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

July 25, 2025

Last Modified

October 15, 2026

Advisory Details (6)

Auto-updated Aug 2, 2026
Patch available.
Web pageMentions a patch (unverified)

[SECURITY] [DLA 4328-1] linux-6.1 security update

https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
Web page

KVM: SVM: Reject SEV{-ES} intra host migration if vCPU creation is in-flight - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/fd044c99d831e9f837518816c7c366b04014d405
Web page

KVM: SVM: Reject SEV{-ES} intra host migration if vCPU creation is in-flight - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ecf371f8b02d5e31b9aa1da7f159f1b2107bdb01
Web page

KVM: SVM: Reject SEV{-ES} intra host migration if vCPU creation is in-flight - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/e0d9a7cf37ca09c513420dc88e0d0e805a4f0820
Web page

KVM: SVM: Reject SEV{-ES} intra host migration if vCPU creation is in-flight - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/b5725213149597cd9c2b075b87bc4e0f87e906c1
Web page

KVM: SVM: Reject SEV{-ES} intra host migration if vCPU creation is in-flight - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8c8e8d4d7544bb783e15078eda8ba2580e192246

Patch Availability(23)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-tools-azure-6.14 (6.14.0-1017.17) @ plucky2026-10-15ubuntu
ubuntulinux-virtual-6.8 (6.8.0-100.100) @ noble2026-10-15ubuntu
ubuntulinux-tools-realtime-hwe-22.04 (6.8.1-1041.42~22.04.1) @ jammy2026-10-15ubuntu
ubuntulinux-tools-gcp-edge (6.8.0-1047.50~22.04.2) @ jammy2026-10-15ubuntu
ubuntulinux-tools-realtime-6.8.1 (6.8.1-1041.42) @ noble2026-10-15ubuntu
ubuntulinux-tools-fips-6.8 (6.8.0-100.100+fips1) @ noble2026-10-15ubuntu
ubuntulinux-tools-oracle-edge (6.8.0-1043.44~22.04.1) @ jammy2026-10-15ubuntu
ubuntulinux-tools-gcp-fips-6.8 (6.8.0-1047.50+fips1) @ noble2026-10-15ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-100.100~22.04.1) @ jammy2026-10-15ubuntu
ubuntulinux-tools-gke-64k-6.8 (6.8.0-1043.48) @ noble2026-10-15ubuntu
ubuntulinux-tools-lowlatency-hwe-20.04-edge (6.8.0-100.100.1) @ noble2026-10-15ubuntu
ubuntulinux-tools-nvidia-lowlatency-64k-6.8 (6.8.0-1046.49.1) @ noble2026-10-15ubuntu
ubuntulinux-tools-ibm-lts-24.04 (6.8.0-1044.44) @ noble2026-10-15ubuntu
ubuntulinux-xilinx-zynqmp (6.8.0.1023.24) @ noble2026-10-15ubuntu
ubuntulinux-tools-azure-lts-24.04 (6.8.0-1046.52) @ noble2026-10-15ubuntu
ubuntulinux-tools-azure-fips-6.8 (6.8.0-1046.52+fips1) @ noble2026-10-15ubuntu
ubuntulinux-tools-azure-edge (6.8.0-1051.57~22.04.1) @ jammy2026-10-15ubuntu
ubuntulinux-virtual-hwe-24.04-edge (6.14.0-36.36) @ plucky2026-10-15ubuntu
ubuntulinux-tools-realtime-hwe-24.04-edge (6.14.0-1016.16~24.04.1) @ noble2026-10-15ubuntu
ubuntulinux-tools-oem-6.14 (6.14.0-1016.16) @ noble2026-10-15ubuntu
ubuntulinux-tools-oracle-edge (6.14.0-1017.17~24.04.1) @ noble2026-10-15ubuntu
ubuntulinux-tools-raspi-6.14 (6.14.0-1018.18) @ plucky2026-10-15ubuntu
linuxKernel @ 6.1.146 (fixes >=5.16.0)—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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
linux-6.16.1.106-3~deb11u1 ... 6.1.148-1~deb11u1 (11 versions)
  • every version up to 6.1.153-1~deb11u1: fixed in 6.1.153-1~deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (41 versions)
  • every version up to 6.1.147-1: fixed in 6.1.147-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.38-1
  • every version up to 6.12.41-1: fixed in 6.12.41-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 6.16~rc7-1~exp1 (62 versions)
  • every version up to 6.16.3-1: fixed in 6.16.3-1
—

Weakness Classification(1)

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

All Vendor Advisories

(22)

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 8× in last 7d / 40× 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 98 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. 2 repeat rows among the latest 100 are merged into the row they repeat. The 95 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% · 8th percentile
  2. 2026-11-01 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  3. 2026-10-31 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  4. 2026-10-30 16:32 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  5. 2026-10-29 16:31 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  6. 2026-10-28 16:30 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  7. 2026-10-27 19:25 UTCOSV refresh
  8. 2026-10-27 16:30 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  9. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.2% · 8th percentile
  10. 2026-10-25 16:31 UTCEPSS rescoreEPSS 0.2% · 7th percentile
  11. 2026-10-25 16:30 UTCEG score recompute
  12. 2026-10-24 16:31 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  13. 2026-10-23 16:30 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  14. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  15. 2026-10-21 16:31 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  16. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  17. 2026-10-19 16:30 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  18. 2026-10-18 16:30 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  19. 2026-10-18 05:35 UTCEG score recompute
  20. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  21. 2026-10-16 16:38 UTCEPSS rescoreEPSS 0.2% · 6th percentile
  22. 2026-10-15 23:08 UTCEG score recompute
  23. 2026-10-15 23:08 UTCVendor advisory
  24. 2026-10-15 23:07 UTCGHSA enrichmentGHSA-4j4q-hxqh-v4q9 · GitHub CVSS 5.5
  25. 2026-10-15 16:30 UTCEPSS rescoreEPSS 0.2% · 6th percentile
Show 73 more
  1. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  2. 2026-10-13 16:32 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  3. 2026-10-12 17:07 UTCEG score recompute
  4. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  5. 2026-10-11 20:40 UTCEG score recompute
  6. 2026-10-11 18:51 UTCEG score recompute
  7. 2026-10-11 15:28 UTCEG score recompute
  8. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  9. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  10. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  11. 2026-10-08 17:09 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  12. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  13. 2026-10-06 15:16 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  14. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  15. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  16. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  17. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  18. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  19. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  20. 2026-09-27 02:15 UTCOSV refresh
  21. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  22. 2026-09-26 00:24 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  23. 2026-09-24 14:02 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  24. 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  25. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  26. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  27. 2026-09-17 19:29 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  28. 2026-09-16 14:07 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  29. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  30. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  31. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  32. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  33. 2026-09-11 09:35 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  34. 2026-09-10 09:33 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  35. 2026-09-08 21:59 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  36. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  37. 2026-09-07 11:47 UTCOSV refresh
  38. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  39. 2026-09-04 05:05 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  40. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  41. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  42. 2026-09-01 04:38 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  43. 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  44. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  45. 2026-08-28 21:40 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  46. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  47. 2026-08-26 14:45 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  48. 2026-08-25 13:48 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  49. 2026-08-23 00:18 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  50. 2026-08-21 23:48 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  51. 2026-08-20 22:54 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  52. 2026-08-20 20:31 UTCOSV refresh
  53. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  54. 2026-08-18 13:47 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  55. 2026-08-17 13:46 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  56. 2026-08-16 14:55 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  57. 2026-08-16 02:13 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  58. 2026-08-15 01:29 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  59. 2026-08-13 21:59 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  60. 2026-08-12 13:50 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  61. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  62. 2026-08-08 16:36 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  63. 2026-08-07 16:26 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  64. 2026-08-06 13:46 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  65. 2026-08-05 13:03 UTCEG score recompute
  66. 2026-08-05 13:03 UTCVendor advisory
  67. 2026-08-05 13:02 UTCGHSA enrichmentGHSA-4j4q-hxqh-v4q9 · GitHub CVSS 5.5
  68. 2026-08-04 15:09 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  69. 2026-08-04 10:37 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  70. 2026-08-03 10:35 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  71. 2026-08-02 02:26 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  72. 2026-08-01 04:15 UTCEPSS rescoreEPSS 0.2% · 5th percentile
  73. 2026-07-30 16:27 UTCEPSS rescoreEPSS 0.2% · 5th percentile

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Frequently asked(5)

What is CVE-2025-38455?
CVE-2025-38455 is a medium-severity vulnerability; its CVE record was published on July 25, 2025. In the Linux kernel, the following vulnerability has been resolved: KVM: SVM: Reject SEV{-ES} intra host migration if vCPU creation is in-flight Reject migration of SEV{-ES} state if either the source or destination VM is actively creating a vCPU, i.e. if kvm_vm_ioctl_create_vcpu() is in the…
When was the CVE record for CVE-2025-38455 published?
The CVE record for CVE-2025-38455 was published on July 25, 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 15, 2026; the record at its source may have been updated since.
Is CVE-2025-38455 actively exploited?
CVE-2025-38455 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (8th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2025-38455?
CVE-2025-38455 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2025-38455?
A fix for CVE-2025-38455 is available: update to the fixed version the vendor names in its advisory.

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