CVE-2026-53277

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-25. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

A fix is available — apply it.

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

KVM: arm64: Take the SRCU lock for page table walks in fault injection and AT emulation

walk_s1() and kvm_walk_nested_s2() expect to be called while holding kvm->srcu to guard against memslot changes. While this is generally the case, __kvm_at_s12() and __kvm_find_s1_desc_level() call into the respective walkers without taking kvm->srcu.

Fix by acquiring kvm->srcu prior to the table walk in both instances.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
44(Track)
EG Risk 44/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
1%
KEV
Not listed

Published

June 25, 2026

Last Modified

July 15, 2026

Advisory Details (3)

Auto-updated Jun 28, 2026
No patch confirmed yet.
generic

KVM: arm64: Take the SRCU lock for page table walks in fault injection and AT emulation - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f2ca45b50d4216c9cc7ffabf50d9ad1932209251
generic

KVM: arm64: Take the SRCU lock for page table walks in fault injection and AT emulation - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/ec42b4ed1b072ea2d03f086061aa67bad6d8de39
generic

KVM: arm64: Take the SRCU lock for page table walks in fault injection and AT emulation - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/97706097f9b851cfe55c3b00b083dfc2bcf542bc

Vendor Advisories for CVE-2026-53277(1)

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

Patch Availability(9)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulinux-virtual-hwe-26.04-edge (7.0.0-28.28) @ resolute2026-07-27ubuntu
ubuntulinux-tools-oem-7.0 (7.0.0-1009.9) @ resolute2026-07-27ubuntu
ubuntulinux-tools-realtime-hwe-24.04 (6.17.0-1018.20~24.04.1) @ noble2026-07-27ubuntu
ubuntulinux-tools-oracle-7.0 (7.0.0-1008.8) @ resolute2026-07-27ubuntu
ubuntulinux-virtual-hwe-24.04-edge (7.0.0-28.28~24.04.1) @ noble2026-07-27ubuntu
ubuntulinux-tools-oem-6.17 (6.17.0-1030.30) @ noble2026-07-27ubuntu
ubuntulinux-tools-azure-fde-7.0 (7.0.0-1009.9) @ resolute2026-07-27ubuntu
ubuntulinux-tools-azure-fde-6.17 (6.17.0-1018.18~24.04.1) @ noble2026-07-27ubuntu
ubuntulinux-tools-azure-6.17 (6.17.0-1021.21~24.04.1) @ noble2026-07-27ubuntu

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.

Weakness Classification(2)

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

All Vendor Advisories

(9)

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 11× in last 7d / 84× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. 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. Most recent first.

  1. 2026-07-27 03:59 UTCVendor advisory
  2. 2026-07-27 03:59 UTCGHSA enrichment
  3. 2026-07-26 15:09 UTCEG score recompute
  4. 2026-07-26 15:09 UTCVendor advisory
  5. 2026-07-26 15:09 UTCGHSA enrichment
  6. 2026-07-25 14:18 UTCEPSS rescore
  7. 2026-07-24 14:18 UTCEPSS rescore
  8. 2026-07-23 03:19 UTCEG score recompute
  9. 2026-07-22 14:08 UTCEPSS rescore
  10. 2026-07-21 15:25 UTCEPSS rescore
  11. 2026-07-20 17:08 UTCEPSS rescore
  12. 2026-07-19 14:31 UTCEPSS rescore
  13. 2026-07-19 14:31 UTCEPSS rescore
  14. 2026-07-19 02:29 UTCEPSS rescore
  15. 2026-07-18 10:04 UTCEPSS rescore
  16. 2026-07-16 20:34 UTCGHSA enrichment
  17. 2026-07-16 17:03 UTCEPSS rescore
  18. 2026-07-16 07:46 UTCGHSA enrichment
  19. 2026-07-15 18:57 UTCGHSA enrichment
  20. 2026-07-15 16:57 UTCEPSS rescore
  21. 2026-07-15 16:57 UTCEPSS rescore
  22. 2026-07-15 06:08 UTCGHSA enrichment
  23. 2026-07-15 02:00 UTCEPSS rescore
  24. 2026-07-15 02:00 UTCEPSS rescore
  25. 2026-07-14 15:15 UTCGHSA enrichment
Show 63 more
  1. 2026-07-14 02:28 UTCGHSA enrichment
  2. 2026-07-13 22:31 UTCEPSS rescore
  3. 2026-07-13 13:40 UTCGHSA enrichment
  4. 2026-07-13 06:13 UTCEPSS rescore
  5. 2026-07-13 06:13 UTCEPSS rescore
  6. 2026-07-13 00:51 UTCGHSA enrichment
  7. 2026-07-12 11:59 UTCGHSA enrichment
  8. 2026-07-12 05:46 UTCEPSS rescore
  9. 2026-07-11 23:11 UTCGHSA enrichment
  10. 2026-07-11 10:22 UTCGHSA enrichment
  11. 2026-07-11 08:27 UTCEPSS rescore
  12. 2026-07-11 08:27 UTCEPSS rescore
  13. 2026-07-10 21:34 UTCGHSA enrichment
  14. 2026-07-10 08:45 UTCGHSA enrichment
  15. 2026-07-09 19:55 UTCGHSA enrichment
  16. 2026-07-09 19:10 UTCEPSS rescore
  17. 2026-07-09 19:10 UTCEPSS rescore
  18. 2026-07-09 07:07 UTCGHSA enrichment
  19. 2026-07-08 18:19 UTCGHSA enrichment
  20. 2026-07-08 15:16 UTCEPSS rescore
  21. 2026-07-08 15:16 UTCEPSS rescore
  22. 2026-07-08 05:31 UTCGHSA enrichment
  23. 2026-07-07 16:43 UTCGHSA enrichment
  24. 2026-07-07 13:46 UTCEPSS rescore
  25. 2026-07-07 13:46 UTCEPSS rescore
  26. 2026-07-07 02:18 UTCGHSA enrichment
  27. 2026-07-06 16:27 UTCEPSS rescore
  28. 2026-07-06 16:27 UTCEPSS rescore
  29. 2026-07-06 13:13 UTCGHSA enrichment
  30. 2026-07-06 02:23 UTCEPSS rescore
  31. 2026-07-06 02:23 UTCEPSS rescore
  32. 2026-07-06 00:19 UTCGHSA enrichment
  33. 2026-07-05 11:30 UTCGHSA enrichment
  34. 2026-07-05 02:31 UTCEPSS rescore
  35. 2026-07-05 02:30 UTCEPSS rescore
  36. 2026-07-04 22:40 UTCGHSA enrichment
  37. 2026-07-04 09:52 UTCGHSA enrichment
  38. 2026-07-04 06:31 UTCEPSS rescore
  39. 2026-07-04 06:31 UTCEPSS rescore
  40. 2026-07-03 21:00 UTCGHSA enrichment
  41. 2026-07-03 08:12 UTCGHSA enrichment
  42. 2026-07-02 19:24 UTCGHSA enrichment
  43. 2026-07-02 06:36 UTCGHSA enrichment
  44. 2026-07-01 17:47 UTCGHSA enrichment
  45. 2026-07-01 15:07 UTCEPSS rescore
  46. 2026-07-01 04:56 UTCGHSA enrichment
  47. 2026-06-30 23:22 UTCEPSS rescore
  48. 2026-06-30 16:08 UTCGHSA enrichment
  49. 2026-06-30 03:20 UTCGHSA enrichment
  50. 2026-06-29 14:32 UTCGHSA enrichment
  51. 2026-06-29 14:06 UTCEPSS rescore
  52. 2026-06-29 14:06 UTCEPSS rescore
  53. 2026-06-29 01:44 UTCGHSA enrichment
  54. 2026-06-28 14:07 UTCEPSS rescore
  55. 2026-06-28 12:55 UTCEG score recompute▲ 8.80
  56. 2026-06-28 12:55 UTCGHSA enrichment
  57. 2026-06-28 07:52 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  58. 2026-06-28 04:56 UTCEPSS rescore
  59. 2026-06-28 04:56 UTCEPSS rescore
  60. 2026-06-27 03:08 UTCEPSS rescore
  61. 2026-06-25 13:49 UTCEPSS rescore
  62. 2026-06-25 10:03 UTCEG score recompute
  63. 2026-06-25 10:02 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-53277?
CVE-2026-53277 is a high vulnerability published on June 25, 2026. In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Take the SRCU lock for page table walks in fault injection and AT emulation walks1() and kvmwalknesteds2() expect to be called while holding kvm->srcu to guard against memslot changes. While this is generally the case,…
When was CVE-2026-53277 disclosed?
CVE-2026-53277 was first published in the National Vulnerability Database on June 25, 2026, with the most recent update on July 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-53277 actively exploited?
CVE-2026-53277 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 98.7% of all scored CVEs.
What is the CVSS score of CVE-2026-53277?
CVE-2026-53277 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-53277?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-53277, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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