Debian/exim4: medium 5.3
In Exim before 4.99.2, when utf8 operators are enabled, there is an out-of-bounds read if large UTF-8 trailing characters are present (malformed UTF-8 header data). Information might be divulged withi
Action: Upgrade exim4 to 4.99.2-1 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 4.99.2-1 | - |
Fixed versions
| 4.99.2-1 |
Sources
- osv: DEBIAN-CVE-2026-40686#Debian:14/exim4
- https://security-tracker.debian.org/tracker/CVE-2026-40686
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