Red Hat Security Advisory: dovecot security update
Affects Red Hat dovecotSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 5.0 Medium.
Data as of 26 Oct 2026, 09:15 UTC
- EPSS
- 0.8% chance of exploitation in 30 days – higher than 57% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 10 Sep 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
AI-suggested
Red Hat has released security updates for Dovecot in Red Hat Enterprise Linux 8 to address these vulnerabilities. Users should apply the updates as described in the Red Hat advisory RHSA-2024:6973 and the referenced article https://access.redhat.com/articles/11258. No additional mitigation is indicated by the vendor.
Description
Two vulnerabilities in Dovecot, an IMAP and POP3 server, can lead to denial of service or resource exhaustion. CVE-2024-23184 involves triggering a denial of service by using a large number of address headers. CVE-2024-23185 involves resource exhaustion caused by very large headers during message parsing. These issues affect Red Hat Enterprise Linux 8 and related builds. A security update addressing these vulnerabilities is available from Red Hat.
References
- access.redhat.com/errata/RHSA-2024:6973 (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2305909 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2305910 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2024/rhsa-2024_6973.json (opens in a new tab)