September 21, 2026

CVE Watchtower

← Back to CVE List

CVE-2026-94054NVD

Vulnerability Summary

Exim before 4.100.1, when Proxy-Protocol is used with an attacker-controlled proxy, has an out-of-bounds write.
Severity Level
HIGH(7.0)
Published Date
Sep 19, 2026
Last Modified
Sep 19, 2026
Exploitation Status
No confirmed exploitation yet
EPSS Score (30-Day)
0.27%Probability
Root Weakness (CWE)
CWE-787: Unknown/Unlisted Weakness ↗
Refer to the official MITRE database for detailed architectural specifications regarding this weakness.
CVSS v3.1 Base Metrics — Score 7.0 (HIGH)
Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityHigh
AvailabilityLow

Affected & Patched Versions

Affected Versions
  • Exim Exim >= 4.83 and < 4.100.1
Patched Versions
  • Exim Exim 4.100.1
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
⚙️Custom EPSS — Filter noise, focus on risk.
💬Webhooks — Slack & Teams integration.
🚫Ad-Free — Uninterrupted experience.
📧Email Delivery — Threat intel straight to your inbox.
♾️Unlimited Vendors — Track your entire stack.
🚨All New CVEs — Be the first to know.
⚙️Custom EPSS — Filter noise, focus on risk.
💬Webhooks — Slack & Teams integration.
🚫Ad-Free — Uninterrupted experience.

External References