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Debian · Security advisory · May 15, 2026
Debian · Security advisory · May 15, 2026DEBIAN-CVE-2026-40686: exim4 security update
DEBIAN-CVE-2026-40686, released May 15, 2026, fixes 1 CVE in exim4. None of them is reported as exploited. Patch Radar priority: Routine.
Routine
CVEs closed
1
None rated Critical
Exploited
0
None reported
Highest CVSS
5.3
Base score, 0 to 10
Highest EPSS
0.0025
15th percentile
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| exim4 | Debian 12.15 (bookworm) | 4.96-15+deb12u9 |
| exim4 | Debian 13.5 (trixie) | 4.98.2-1+deb13u2 |
| exim4 | Debian 14 | 4.99.2-1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Routine | CVE-2026-40686 | exim4: In Exim before 4.99.2, when utf8 operators are enabled, there is an out-of-bounds read if large UTF-8 trailing charac... | 5.3 | 0.0025 | None reported |
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