CVE-2026-66140

7.8 highEPSS 0.4%

High (7.8) in exim exim. EPSS 0.4% chance of exploitation in the next 30 days.

Exim before 4.99.5 allows directory traversal to access files outside of the spool area, and consequently gain privileges, because arguments related to queue-name are mishandled.

Severity

CVSS 3.1

7.8 high

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.4% chance of exploitation in the next 30 days; higher than 32% of CVEs (scores of 2026-10-31)
CWE: CWE-24
Published: 2026-07-24
Modified: 2026-08-17
Record from: the NVD, synced 2026-10-19

Affected

exim:exim

References

https://openwall.com/lists/oss-security/2026/07/22/9

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