CVSS v3
8.4
HIGH
EPSS Score
0.3%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
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.
Active exploitation of CVE-2026-66140 has not been confirmed. The EPSS score is 0.3%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2026-66140 has a CVSS v3 base score of 8.4 (HIGH severity), with vector string 3.1.
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