CVE-2026-89914

CRITICALPre-NVD 9.39.3—
EchelonGraph scoreHIGH confidence

Score 9.3 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-16. A secondary CVSS source baseline 9.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
9.3EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 9.3Exploit: None knownExposed services: Not assessed

No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.

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

KVM: arm64: Sign-extend VA for range-based TLBI invalidation

When the decode_range_tlbi() helper was moved to be used for S1 TLBIs, the required sign extension was omitted. Add it.

As a result, special care must be taken to not overflow PA bits when this is used for S2 invalidation.

CVSS v3
9.3
EG Score
9.3CRITICALhigh confidence
EG Risk
46
EG Risk 46/100CISA SSVC

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
Severity93% × 45%
Exploitation0% × 40%
Automatability30% × 15%
CISA SSVC: Track at low or medium mission impact; Track* or Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.2%
EPSS %ILE
8th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* or Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation none (no KEV listing, exploit record or EPSS ≥ 50%) · Automatable unknown (not published for this CVE) · Technical impact total (CVSS ≥ 9.0). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

September 16, 2026

Last Modified

September 16, 2026

Advisory Details (3)

Auto-updated Oct 3, 2026
No patch confirmed yet.
generic

KVM: arm64: Sign-extend VA for range-based TLBI invalidation - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/72bce82c4171bf330919ff1b64dc0a36c254ec7d
generic

KVM: arm64: Sign-extend VA for range-based TLBI invalidation - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/3feb83918e30f0472e058224b926ebfe8a064fac
generic

KVM: arm64: Sign-extend VA for range-based TLBI invalidation - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/2393470085649f0b973ecceb26fe8fc71edde0c1

Vendor Advisories for CVE-2026-89914(1)

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

Affected Packages

(1 across 1 ecosystem)
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.12.100-1 ... 7.2~rc7-1~exp1 (178 versions)
  • every version up to 7.2.6-1: fixed in 7.2.6-1
—

Data Freshness Timeline

(refreshed 50× in last 7d / 143× 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.

Showing the most recent 100 of 143 total refreshes for this CVE.

  1. 2026-10-05 08:48 UTCGHSA enrichment
  2. 2026-10-05 04:26 UTCGHSA enrichment
  3. 2026-10-05 00:05 UTCEG score recompute
  4. 2026-10-05 00:05 UTCGHSA enrichment
  5. 2026-10-04 23:22 UTCEPSS rescore
  6. 2026-10-04 19:43 UTCGHSA enrichment
  7. 2026-10-04 15:21 UTCGHSA enrichment
  8. 2026-10-04 10:59 UTCGHSA enrichment
  9. 2026-10-04 06:38 UTCGHSA enrichment
  10. 2026-10-04 02:17 UTCGHSA enrichment
  11. 2026-10-03 21:56 UTCGHSA enrichment
  12. 2026-10-03 17:34 UTCEG score recompute
  13. 2026-10-03 17:34 UTCGHSA enrichment
  14. 2026-10-03 13:13 UTCGHSA enrichment
  15. 2026-10-03 08:51 UTCGHSA enrichment
  16. 2026-10-03 04:21 UTCGHSA enrichment
  17. 2026-10-02 23:59 UTCGHSA enrichment
  18. 2026-10-02 19:37 UTCEG score recompute
  19. 2026-10-02 19:37 UTCGHSA enrichment
  20. 2026-10-02 15:15 UTCGHSA enrichment
  21. 2026-10-02 10:52 UTCGHSA enrichment
  22. 2026-10-02 06:13 UTCGHSA enrichment
  23. 2026-10-02 01:52 UTCGHSA enrichment
  24. 2026-10-01 21:28 UTCEG score recompute
  25. 2026-10-01 21:28 UTCGHSA enrichment
Show 75 more
  1. 2026-10-01 19:51 UTCEPSS rescore
  2. 2026-10-01 17:07 UTCGHSA enrichment
  3. 2026-10-01 12:27 UTCGHSA enrichment
  4. 2026-10-01 07:59 UTCGHSA enrichment
  5. 2026-10-01 03:38 UTCGHSA enrichment
  6. 2026-09-30 23:17 UTCGHSA enrichment
  7. 2026-09-30 18:51 UTCEG score recompute
  8. 2026-09-30 18:51 UTCGHSA enrichment
  9. 2026-09-30 15:04 UTCEPSS rescore
  10. 2026-09-30 14:04 UTCGHSA enrichment
  11. 2026-09-30 09:42 UTCGHSA enrichment
  12. 2026-09-30 05:20 UTCGHSA enrichment
  13. 2026-09-30 00:54 UTCGHSA enrichment
  14. 2026-09-29 16:11 UTCEG score recompute
  15. 2026-09-29 16:11 UTCGHSA enrichment
  16. 2026-09-29 11:50 UTCGHSA enrichment
  17. 2026-09-29 07:29 UTCGHSA enrichment
  18. 2026-09-29 03:08 UTCGHSA enrichment
  19. 2026-09-28 22:46 UTCEG score recompute
  20. 2026-09-28 22:45 UTCGHSA enrichment
  21. 2026-09-28 18:24 UTCEG score recompute
  22. 2026-09-28 18:24 UTCGHSA enrichment
  23. 2026-09-28 13:52 UTCEPSS rescore
  24. 2026-09-28 13:52 UTCEPSS rescore
  25. 2026-09-28 13:09 UTCGHSA enrichment
  26. 2026-09-28 08:48 UTCGHSA enrichment
  27. 2026-09-28 04:26 UTCGHSA enrichment
  28. 2026-09-28 00:05 UTCGHSA enrichment
  29. 2026-09-27 19:42 UTCGHSA enrichment
  30. 2026-09-27 15:20 UTCEG score recompute
  31. 2026-09-27 15:20 UTCGHSA enrichment
  32. 2026-09-27 13:49 UTCEPSS rescore
  33. 2026-09-27 10:56 UTCGHSA enrichment
  34. 2026-09-27 06:35 UTCGHSA enrichment
  35. 2026-09-27 02:13 UTCGHSA enrichment
  36. 2026-09-26 21:52 UTCGHSA enrichment
  37. 2026-09-26 17:31 UTCEG score recompute
  38. 2026-09-26 17:31 UTCGHSA enrichment
  39. 2026-09-26 15:59 UTCEPSS rescore
  40. 2026-09-26 13:09 UTCGHSA enrichment
  41. 2026-09-26 08:41 UTCGHSA enrichment
  42. 2026-09-26 04:20 UTCEG score recompute
  43. 2026-09-26 04:20 UTCGHSA enrichment
  44. 2026-09-25 23:56 UTCGHSA enrichment
  45. 2026-09-25 19:35 UTCGHSA enrichment
  46. 2026-09-25 15:11 UTCGHSA enrichment
  47. 2026-09-25 10:50 UTCGHSA enrichment
  48. 2026-09-25 06:16 UTCGHSA enrichment
  49. 2026-09-25 01:55 UTCGHSA enrichment
  50. 2026-09-24 21:33 UTCGHSA enrichment
  51. 2026-09-24 17:12 UTCEG score recompute
  52. 2026-09-24 17:12 UTCGHSA enrichment
  53. 2026-09-24 14:04 UTCEPSS rescore
  54. 2026-09-24 12:51 UTCGHSA enrichment
  55. 2026-09-24 08:29 UTCGHSA enrichment
  56. 2026-09-24 04:08 UTCGHSA enrichment
  57. 2026-09-23 23:47 UTCGHSA enrichment
  58. 2026-09-23 19:25 UTCEG score recompute
  59. 2026-09-23 19:25 UTCGHSA enrichment
  60. 2026-09-23 17:54 UTCEPSS rescore
  61. 2026-09-23 15:04 UTCGHSA enrichment
  62. 2026-09-23 10:42 UTCGHSA enrichment
  63. 2026-09-23 06:16 UTCGHSA enrichment
  64. 2026-09-23 01:55 UTCGHSA enrichment
  65. 2026-09-22 21:33 UTCGHSA enrichment
  66. 2026-09-22 17:11 UTCEG score recompute
  67. 2026-09-22 17:11 UTCGHSA enrichment
  68. 2026-09-22 16:01 UTCEPSS rescore
  69. 2026-09-22 12:49 UTCGHSA enrichment
  70. 2026-09-22 08:28 UTCGHSA enrichment
  71. 2026-09-22 04:06 UTCGHSA enrichment
  72. 2026-09-21 23:44 UTCEG score recompute
  73. 2026-09-21 23:44 UTCGHSA enrichment
  74. 2026-09-21 21:09 UTCEPSS rescore
  75. 2026-09-21 19:23 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-89914?
CVE-2026-89914 is a critical vulnerability published on September 16, 2026. In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Sign-extend VA for range-based TLBI invalidation When the decoderangetlbi() helper was moved to be used for S1 TLBIs, the required sign extension was omitted. Add it. As a result, special care must be taken to not…
When was CVE-2026-89914 disclosed?
CVE-2026-89914 was first published on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-89914 actively exploited?
CVE-2026-89914 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-2026-89914?
CVE-2026-89914 has a CVSS base score of 9.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-89914?
No fix for CVE-2026-89914 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-89914 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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