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Debian · Security advisory · September 10, 2026
Debian · Security advisory · September 10, 2026DEBIAN-CVE-2026-40203: dovecot security update
DEBIAN-CVE-2026-40203, released September 10, 2026, fixes 1 CVE in dovecot. None of them is reported as exploited. Patch Radar priority: Routine.
Routine
CVEs closed
1
None rated Critical
Exploited
0
None reported
Highest CVSS
3.7
Base score, 0 to 10
Highest EPSS
0.0026
17th percentile
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| dovecot | Debian 12.15 (bookworm) | 1:2.3.19.1+dfsg1-2.1+deb12u7 |
| dovecot | Debian 13.5 (trixie) | 1:2.4.1+dfsg1-6+deb13u7 |
| dovecot | Debian 14 | 1:2.4.5+dfsg1-1 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| Routine | CVE-2026-40203 | dovecot: When IMAP compression is enabled, the same compression state is reused across responses in a session, so response siz... | 3.7 | 0.0026 | None reported |
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