CVE-2026-93373

CRITICALPre-NVD 9.69.6—
EchelonGraph scoreHIGH confidence

Score 9.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-09-17. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 5 sources updated this week
9.6EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.6Exploit: None knownExposed: 0

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

Use after free in Extensions in Google Chrome prior to 153.0.8010.52 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted Chrome extension. (Chromium security severity: High)

CVSS v3
9.6
Vendor severity
HIGHper Google (Chromium)Vendor's own band, not a CVSS rating — advisory text: (Chromium security severity: High)
EG Score
9.6(high)
EG Risk
43(Track)
EG Risk 43/100SSVC: 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
Severity96% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
23%
KEV
Not listed

Published

September 17, 2026

Last Modified

September 19, 2026

Advisory Details (2)

Auto-updated Sep 18, 2026
No patch confirmed yet.
generic

Chromium

https://issues.chromium.org/issues/553132214
generic

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0194356994.html

Vendor Advisories for CVE-2026-93373(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 24× in last 7d / 24× 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. 2026-09-20 10:48 UTCGHSA enrichment
  2. 2026-09-20 06:28 UTCGHSA enrichment
  3. 2026-09-20 02:08 UTCGHSA enrichment
  4. 2026-09-19 21:49 UTCGHSA enrichment
  5. 2026-09-19 17:30 UTCEG score recompute
  6. 2026-09-19 17:30 UTCGHSA enrichment
  7. 2026-09-19 13:11 UTCGHSA enrichment
  8. 2026-09-19 08:52 UTCGHSA enrichment
  9. 2026-09-19 04:31 UTCGHSA enrichment
  10. 2026-09-19 04:01 UTCGHSA enrichment
  11. 2026-09-19 03:17 UTCGHSA enrichment
  12. 2026-09-18 22:58 UTCEG score recompute
  13. 2026-09-18 22:58 UTCGHSA enrichment
  14. 2026-09-18 19:28 UTCEPSS rescore
  15. 2026-09-18 18:40 UTCEG score recompute
  16. 2026-09-18 18:40 UTCGHSA enrichment
  17. 2026-09-18 14:21 UTCGHSA enrichment
  18. 2026-09-18 13:34 UTCEG score recompute▲ 0.80
  19. 2026-09-18 13:34 UTCGHSA enrichment
  20. 2026-09-18 13:34 UTCMITRE cvelistV5CVSS v3 → 9.6 · severity → CRITICAL
  21. 2026-09-18 09:08 UTCGHSA enrichment
  22. 2026-09-17 21:19 UTCNVD update
  23. 2026-09-17 21:14 UTCEG score recompute
  24. 2026-09-17 21:14 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-93373?
CVE-2026-93373 is a critical vulnerability published on September 17, 2026. Use after free in Extensions in Google Chrome prior to 153.0.8010.52 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted Chrome extension. (Chromium security severity: High)
When was CVE-2026-93373 disclosed?
CVE-2026-93373 was first published in the National Vulnerability Database on September 17, 2026, with the most recent update on September 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-93373 actively exploited?
CVE-2026-93373 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 76.6% of all scored CVEs.
What is the CVSS score of CVE-2026-93373?
CVE-2026-93373 has a CVSS v3.1 base score of 9.6 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-93373?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-93373, 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

Explore the affected products and dependency analysis for CVE-2026-93373

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