Skip to main content
VulnerabilityPublished Updated

CVE-2025-59032: Open-Xchange OX Dovecot Pro · Improper Input Validation

Affects Open-Xchange OX Dovecot ProSource CVE Database V5

0
Compare

Not known to be exploited · CVSS 7.5 High.

Data as of 29 Oct 2026, 19:04 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.7% chance of exploitation in 30 days – higher than 54% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 27 Mar 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 29 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
Open-Xchange GmbHOX Dovecot ProAffected
  • <=3.1.0
  • <=2.4.0
Fixed in–

AI-suggested

Red Hat has released official security updates that fix this vulnerability in their Extended Life Cycle Support 7 packages. Applying these updates will remediate the issue. Until patched, controlling access to the ManageSieve port or disabling the ManageSieve service if not needed can mitigate the risk. No public exploits are known, reducing immediate urgency but patching is recommended.

Description

ManageSieve AUTHENTICATE command crashes when using literal as SASL initial response. This can be used to crash ManageSieve service repeatedly, making it unavailable for other users. Control access to ManageSieve port, or disable the service if it's not needed. Alternatively upgrade to a fixed version. No publicly available exploits are known.

References

Community reviews

Loading reviews…