CyberRota Analysis
This is a medium severity vulnerability with a CVSS score of 4.8. See the original NVD description below for full technical details.
CVE
CVE-2026-40687
Severity
MEDIUM
CVSS
4.8
EPSS
0.37%
Original NVD Description
In Exim before 4.99.2, when the SPA authentication driver is used with an adversarial SPA resource, there can be an out-of-bounds write that crashes the connection instance, or erroneous data processing that divulges data from uninitialized heap memory.
Related CVEs
Other vulnerabilities affecting the same vendor(s)