CVE-2026-94054

HIGHNVD 5.37.0▲
EchelonGraph scoreMEDIUM confidence

Score 7.0 from GitHub Security Advisory (severity: HIGH) published 2026-09-20. NVD baseline CVSS 5.3; sources differ by 1.7.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 5 sources updated this week
7.0EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.3Exploit: None knownExposed: 0

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

Exim before 4.100.1, when Proxy-Protocol is used with an attacker-controlled proxy, has an out-of-bounds write.

CVSS v3
5.3
EG Score
7.0(medium)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity70% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
25%
KEV
Not listed

Published

September 19, 2026

Last Modified

September 24, 2026

Advisory Details (1)

Auto-updated Sep 19, 2026
No patch confirmed yet.
generic

[exim] Exim Security Release - 4.100.1

https://lists.exim.org/lurker/message/20260918.121220.0f87338e.en.html

Vendor Advisories for CVE-2026-94054(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 28× in last 7d / 28× 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. 2026-09-25 09:58 UTCGHSA enrichment
  2. 2026-09-24 20:55 UTCEG score recompute
  3. 2026-09-24 20:55 UTCGHSA enrichment
  4. 2026-09-24 20:55 UTCNVD updateCVSS v3 → 5.3 · severity → MEDIUM
  5. 2026-09-24 14:04 UTCEPSS rescore
  6. 2026-09-24 11:21 UTCGHSA enrichment
  7. 2026-09-23 22:19 UTCEG score recompute
  8. 2026-09-23 22:19 UTCGHSA enrichment
  9. 2026-09-23 17:54 UTCEPSS rescore
  10. 2026-09-23 09:16 UTCGHSA enrichment
  11. 2026-09-22 20:13 UTCGHSA enrichment
  12. 2026-09-22 17:38 UTCEG score recompute
  13. 2026-09-22 17:38 UTCGHSA enrichment
  14. 2026-09-22 16:25 UTCEG score recompute
  15. 2026-09-22 16:25 UTCGHSA enrichment
  16. 2026-09-22 16:01 UTCEPSS rescore
  17. 2026-09-22 03:39 UTCEG score recompute
  18. 2026-09-22 03:39 UTCGHSA enrichment
  19. 2026-09-21 21:09 UTCEPSS rescore
  20. 2026-09-21 14:36 UTCGHSA enrichment
  21. 2026-09-21 01:33 UTCEG score recompute
  22. 2026-09-21 01:33 UTCGHSA enrichment
  23. 2026-09-20 20:16 UTCEPSS rescore
  24. 2026-09-20 12:30 UTCEG score recompute
  25. 2026-09-20 12:30 UTCGHSA enrichment
Show 3 more
  1. 2026-09-19 23:27 UTCEG score recompute
  2. 2026-09-19 22:50 UTCEG score recompute
  3. 2026-09-19 22:50 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-94054?
CVE-2026-94054 is a high vulnerability published on September 19, 2026. Exim before 4.100.1, when Proxy-Protocol is used with an attacker-controlled proxy, has an out-of-bounds write.
When was CVE-2026-94054 disclosed?
CVE-2026-94054 was first published in the National Vulnerability Database on September 19, 2026, with the most recent update on September 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-94054 actively exploited?
CVE-2026-94054 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 74.9% of all scored CVEs.
What is the CVSS score of CVE-2026-94054?
CVE-2026-94054 has a CVSS v3 base score of 5.3 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.0.
How do I remediate CVE-2026-94054?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-94054, 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-2026-94054

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