CVE-2026-93381

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-09-17. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 5 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

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

Buffer overflow in PDFium in Google Chrome on on Windows prior to 153.0.8010.52 allowed a remote attacker leveraging social engineering to potentially execute arbitrary code inside the sandbox via a crafted PDF file. (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
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
28%
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/556853443
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-2026-93381(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 20× in last 7d / 20× 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. 2026-09-21 02:50 UTCEG score recompute
  2. 2026-09-21 02:50 UTCGHSA enrichment
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-20 15:16 UTCGHSA enrichment
  5. 2026-09-20 03:40 UTCGHSA enrichment
  6. 2026-09-19 16:06 UTCEG score recompute
  7. 2026-09-19 16:06 UTCGHSA enrichment
  8. 2026-09-19 04:31 UTCGHSA enrichment
  9. 2026-09-19 04:01 UTCGHSA enrichment
  10. 2026-09-19 01:55 UTCEG score recompute
  11. 2026-09-19 01:55 UTCGHSA enrichment
  12. 2026-09-18 19:28 UTCEPSS rescore
  13. 2026-09-18 14:21 UTCGHSA enrichment
  14. 2026-09-18 13:34 UTCEG score recompute
  15. 2026-09-18 13:34 UTCGHSA enrichment
  16. 2026-09-18 13:34 UTCMITRE cvelistV5CVSS v3 → 8.8 · severity → HIGH
  17. 2026-09-18 08:54 UTCGHSA enrichment
  18. 2026-09-17 21:19 UTCNVD update
  19. 2026-09-17 21:14 UTCEG score recompute
  20. 2026-09-17 21:14 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-93381?
CVE-2026-93381 is a high vulnerability published on September 17, 2026. Buffer overflow in PDFium in Google Chrome on on Windows prior to 153.0.8010.52 allowed a remote attacker leveraging social engineering to potentially execute arbitrary code inside the sandbox via a crafted PDF file. (Chromium security severity: High)
When was CVE-2026-93381 disclosed?
CVE-2026-93381 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-2026-93381 actively exploited?
CVE-2026-93381 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 72.3% of all scored CVEs.
What is the CVSS score of CVE-2026-93381?
CVE-2026-93381 has a CVSS v3.1 base score of 8.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-93381?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-93381, 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-2026-93381

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