Debian/exim4: medium 5.3
Exim 4.88 before 4.99.4, in some proxy configurations, mishandles certain short payloads, leading to disclosure of uninitialized stack memory values to a client.
Action: Upgrade exim4 to 4.99.3-2 or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 0 | 4.99.3-2 | - |
Fixed versions
| 4.99.3-2 |
Sources
- osv: DEBIAN-CVE-2026-48840#Debian:14/exim4
- https://security-tracker.debian.org/tracker/CVE-2026-48840
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