Linux · Security advisory · March 27, 2026
RHSA-2026:17602: dovecot security update
RHSA-2026:17602, released March 27, 2026, fixes 3 CVEs in dovecot (version 2.3.21-16.el10_0.1). None of them is reported as exploited. Patch Radar priority: High.
High
CVEs closed
3
None rated Critical
Exploited
0
None reported
Exploitation more likely
0
Vendor assessment
Highest EPSS
0.0080
56th percentile
Priority of the 3 CVEs
Patch now 0
Urgent 0
High 3
Routine 0
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| dovecot | RHEL 10 | 2.3.21-16.el10_0.1 |
CVEs this fix closes
| Priority | CVE | Title | Impact | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|---|
| High | CVE-2026-27858 | dovecot23: This update for dovecot23 fixes the following issues: - CVE-2024-23184: parsing of messages containing many address... | 7.5 | 0.0080 | None reported | |
| High | CVE-2025-59032 | dovecot: ManageSieve AUTHENTICATE command crashes when using literal as SASL initial response | 7.5 | 0.0073 | None reported | |
| High | CVE-2026-27857 | dovecot23: This update for dovecot23 fixes the following issues: - CVE-2024-23184: parsing of messages containing many address... | 7.5 | 0.0068 | None reported |
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