CVE-2026-3909

CRITICALNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2026-03-13), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.8 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
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 write in Skia in Google Chrome prior to 146.0.7680.75 allowed a remote attacker to perform out of bounds memory access 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
75%
KEV
⚠ Exploited

Published

March 12, 2026

Last Modified

June 17, 2026

Advisory Details (3)

Auto-updated Jul 27, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-3909
generic

Chromium

https://issues.chromium.org/issues/491421267
generic🔴 Active Exploitation

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_13.html

Vendor Advisories for CVE-2026-3909(1)

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 ... 146.0.7680.71-1~deb13u1 (324 versions)146.0.7680.80-1~deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
chromium138.0.7204.183-1 ... 146.0.7680.80-1~deb12u1 (90 versions)146.0.7680.80-1~deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
chromium138.0.7204.183-1 ... 146.0.7680.80-1~deb13u1 (91 versions)146.0.7680.80-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 96× in last 7d / 388× 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 699 total refreshes for this CVE.

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

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.

Frequently asked(6)

What is CVE-2026-3909?
CVE-2026-3909 is a critical vulnerability published on March 12, 2026. Out of bounds write in Skia in Google Chrome prior to 146.0.7680.75 allowed a remote attacker to perform out of bounds memory access via a crafted HTML page. (Chromium security severity: High)
When was CVE-2026-3909 disclosed?
CVE-2026-3909 was first published in the National Vulnerability Database on March 12, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-3909 actively exploited?
Yes. CISA added CVE-2026-3909 to the Known Exploited Vulnerabilities catalog on March 13, 2026, affecting Google Skia. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2026-3909?
CVE-2026-3909 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2026-3909?
CVE-2026-3909 affects Google Skia. 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-2026-3909?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-3909, 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-2026-3909

Explore →

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