Inclusion of Functionality from Untrusted Control Sphere Affecting exim4 package, versions <4.99.1-1ubuntu1.4
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-UBUNTU2604-EXIM4-18323082
- published29 Jul 2026
- disclosed24 Jul 2026
Introduced: 24 Jul 2026
NewCVE-2026-66141 (opens in a new tab)How to fix?
Upgrade Ubuntu:26.04 exim4 to version 4.99.1-1ubuntu1.4 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream exim4 package and not the exim4 package as distributed by Ubuntu.
See How to fix? for Ubuntu:26.04 relevant fixed versions and status.
Exim before 4.99.5 allows .forward privilege escalation because force_command for a pipe transport is mishandled.