CVE-2025-9479

HIGHPre-NVD 4.38.8▲
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2025-11-14. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 4.3; sources differ by 4.5.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Elevated
8.8EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: Elevated riskExposed: 0

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

Out of bounds read in V8 in Google Chrome prior to 133.0.6943.141 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)

CVSS v3
4.3
EG Score
8.8(medium)
EG Risk
56(Track)
EG Risk 56/100SSVC: 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%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
10%
KEV
Not listed

Published

November 14, 2025

Last Modified

June 17, 2026

References (2)

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 ... 133.0.6943.98-1~deb12u1 (194 versions)134.0.6998.35-1~deb12u1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
chromium—133.0.6943.141-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
chromium—133.0.6943.141-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 3× in last 7d / 22× 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 132 total refreshes for this CVE.

  1. 2026-09-20 20:15 UTCEPSS rescore
  2. 2026-09-18 19:27 UTCEPSS rescore
  3. 2026-09-16 05:14 UTCEPSS rescore
  4. 2026-09-13 16:46 UTCEPSS rescore
  5. 2026-09-12 18:00 UTCOSV refresh
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  17. 2026-08-30 19:17 UTCEPSS rescore
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  20. 2026-08-27 14:24 UTCEPSS rescore
  21. 2026-08-25 13:48 UTCEPSS rescore
  22. 2026-08-24 23:14 UTCOSV refresh
  23. 2026-08-23 00:19 UTCEPSS rescore
  24. 2026-08-21 23:48 UTCEPSS rescore
  25. 2026-08-19 17:03 UTCEPSS rescore
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  1. 2026-08-18 13:48 UTCEPSS rescore
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  8. 2026-08-10 23:59 UTCEPSS rescore
  9. 2026-08-09 13:46 UTCEPSS rescore
  10. 2026-08-08 16:49 UTCOSV refresh
  11. 2026-08-08 16:37 UTCEPSS rescore
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  24. 2026-07-25 14:17 UTCEPSS rescore
  25. 2026-07-24 14:17 UTCEPSS rescore
  26. 2026-07-23 15:11 UTCOSV refresh
  27. 2026-07-23 14:18 UTCEPSS rescore
  28. 2026-07-23 03:03 UTCEG score recompute
  29. 2026-07-22 14:08 UTCEPSS rescore
  30. 2026-07-21 15:24 UTCEPSS rescore
  31. 2026-07-20 17:08 UTCEPSS rescore
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  40. 2026-07-12 05:46 UTCEPSS rescore
  41. 2026-07-11 08:27 UTCEPSS rescore
  42. 2026-07-09 19:10 UTCEPSS rescore
  43. 2026-07-08 15:15 UTCEPSS rescore
  44. 2026-07-08 15:15 UTCEPSS rescore
  45. 2026-07-07 13:46 UTCEPSS rescore
  46. 2026-07-06 16:27 UTCEPSS rescore
  47. 2026-07-06 09:41 UTCOSV refresh
  48. 2026-07-06 02:23 UTCEPSS rescore
  49. 2026-07-05 02:30 UTCEPSS rescore
  50. 2026-07-05 02:30 UTCEPSS rescore
  51. 2026-07-04 06:31 UTCEPSS rescore
  52. 2026-07-01 15:06 UTCEPSS rescore
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  54. 2026-06-30 23:22 UTCEPSS rescore
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  59. 2026-06-27 03:08 UTCEPSS rescore
  60. 2026-06-25 13:49 UTCEPSS rescore
  61. 2026-06-24 14:05 UTCEPSS rescore
  62. 2026-06-23 21:32 UTCEPSS rescore
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  65. 2026-06-21 14:56 UTCEPSS rescore
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  67. 2026-06-21 01:59 UTCEPSS rescore
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  69. 2026-06-19 19:25 UTCEPSS rescore
  70. 2026-06-19 19:25 UTCEPSS rescore
  71. 2026-06-18 17:52 UTCEPSS rescore
  72. 2026-06-18 17:52 UTCEPSS rescore
  73. 2026-06-17 21:43 UTCOSV refresh
  74. 2026-06-17 17:53 UTCEPSS rescore
  75. 2026-06-16 17:52 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2025-9479?
CVE-2025-9479 is a high vulnerability published on November 14, 2025. Out of bounds read in V8 in Google Chrome prior to 133.0.6943.141 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)
When was CVE-2025-9479 disclosed?
CVE-2025-9479 was first published in the National Vulnerability Database on November 14, 2025, 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-2025-9479 actively exploited?
CVE-2025-9479 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 90.5% of all scored CVEs.
What is the CVSS score of CVE-2025-9479?
CVE-2025-9479 has a CVSS v3.1 base score of 4.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.8.
How do I remediate CVE-2025-9479?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-9479, 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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