CVE-2025-59032

Summary

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.

Affected Software

VendorProductVersion RangeStatus
Open-Xchange GmbHOX Dovecot Pro0 <= 3.1.0affected
Open-Xchange GmbHOX Dovecot Pro0 <= 2.4.0affected

Weaknesses

  • CWE-20: Improper Input Validation

ADP Enrichment

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: yes
    • Technical Impact: partial

dovecot: ManageSieve: Denial of Service via crafted SASL initial response in AUTHENTICATE command

Additional References

References