CVE-2026-11645

CRITICALPre-NVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-06-09), indicating real-world exploitation has been confirmed by US federal agencies. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.8 retained for reference (NVD's own analysis pending). Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa-adp, cisa_kev, epss, ghsa
Trending — 5 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 2%CVSS: 8.8Exploit: cisa kev · ssvc active · public exploitExposed: 0

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

Out of bounds read and write in V8 in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS v3
8.8
Vendor severity
HIGHper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: High)
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

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
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
2%
EPSS %ILE
81%
KEV
⚠ Exploited

Published

June 8, 2026

Last Modified

July 23, 2026

Advisory Details (2)

Auto-updated Jun 9, 2026
⚠️ Active exploitation confirmed. No patch confirmed yet.
generic

Chromium

https://issues.chromium.org/issues/506689381
generic🔴 Active Exploitation

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0153744567.html

Vendor Advisories for CVE-2026-11645(2)

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

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
chromium100.0.4896.127-1 ... 99.0.4844.84-1~deb11u1 (500 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
chromium113.0.5672.126-1 ... 149.0.7827.53-1~deb13u1 (366 versions)149.0.7827.102-1~deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
chromium138.0.7204.183-1 ... 149.0.7827.53-1~deb13u1 (132 versions)149.0.7827.102-1~deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
chromium138.0.7204.183-1 ... 149.0.7827.53-1~deb13u1 (133 versions)149.0.7827.102-1—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 93× in last 7d / 429× 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 1,314 total refreshes for this CVE.

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

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • GitHub PoCfevar54/CVE-2026-11645-Out-of-bounds-Read-Write
    First seen Jun 10, 2026

    # CVE-2026-11645 - Chrome V8 Out-of-Bounds Read/Write Exploit

    Open source ↗

Frequently asked(6)

What is CVE-2026-11645?
CVE-2026-11645 is a critical vulnerability published on June 8, 2026. Out of bounds read and write in V8 in Google Chrome prior to 149.0.7827.103 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
When was CVE-2026-11645 disclosed?
CVE-2026-11645 was first published in the National Vulnerability Database on June 8, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-11645 actively exploited?
Yes. CISA added CVE-2026-11645 to the Known Exploited Vulnerabilities catalog on June 9, 2026, affecting Google Chromium V8. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2026-11645?
CVE-2026-11645 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2026-11645?
CVE-2026-11645 affects Google Chromium V8. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2026-11645?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-11645, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-11645

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