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CVE-2025-23394VulnerabilityPublished Updated

SUSE cyrus-imapd · Security update for cyrus-imapd

Affects SUSE cyrus-imapdSource GCVE Database

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Mentioned vulnerabilities

Not known to be exploited : upgrade the SUSE suse/cyrus-imapd package to 3.8.6-bp160.1.1.aarch64 soon.

Data as of 1 Nov 2026, 08:20 UTC

Severity
High

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS
0.5% chance of exploitation in 30 days – higher than 48% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.8.6-bp160.1.1.aarch64

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 12 Jun 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 31 Oct 2026.

What to do

Upgrade the SUSE suse/cyrus-imapd package to 3.8.6-bp160.1.1.aarch64.

Affected software

ProductAffectedFixed in
SUSEsuse/cyrus-imapdpkg:rpm/suse/cyrus-imapdOther threatsAffected
  • <3.8.6-bp160.1.1.aarch64
Fixed in
  • 3.8.6-bp160.1.1.aarch64

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A security update is available that addresses these vulnerabilities and other issues. Users should upgrade to cyrus-imapd versions 3.8.5 or 3.8.6 as appropriate. The update disables STARTTLS by default, so administrators should verify their TLS configurations to ensure secure communications. No additional mitigations are specified beyond applying the official fixes.

Description

This security update for cyrus-imapd addresses multiple issues including two notable vulnerabilities: CVE-2025-49812 related to Opportunistic TLS desynchronization attacks and CVE-2025-23394 which allows privilege escalation from the cyrus user to root via the daily-backup.sh script. The update also disables STARTTLS by default in favor of implicit TLS over a dedicated port and fixes several bugs and stability issues.

References

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