Postfix vulnerabilities and fixes

CVEs that mention Postfix, ranked by priority. 1 tracked.

Postfix has 1 tracked vulnerability, 0 critical. A fixed release or vendor patch exists for 0. Most recent: 2026-10-23. Highest priority: CVE-2026-50057 (score 29/100).

• CVE-2026-50057 HIGH 7.8 A local privilege escalation vulnerability in the Zimbra Collaboration Suite (ZCS) MTA package allows the Unix

FAQ

How do I fix Postfix vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is Postfix being exploited right now?

None of the tracked Postfix CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.

Which Postfix CVE should I patch first?

CVE-2026-50057 currently ranks highest (29/100): A local privilege escalation vulnerability in the Zimbra Collaboration Suite (ZCS) MTA package allows the Unix.

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