zeroconf vulnerabilities and fixes

Recent CVEs affecting zeroconf, with upgrade or downgrade steps. 5 tracked.

zeroconf has 5 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 5. Most recent: 2026-07-17. Highest priority: CVE-2026-48487 (score 34/100).

• CVE-2026-48487 MEDIUM 5.3 UPGRADE Zeroconf is a pure Python implementation of multicast DNS service discovery
• CVE-2026-48045 MEDIUM 6.5 UPGRADE Zeroconf is a pure Python implementation of multicast DNS service discovery
• CVE-2026-47184 MEDIUM 6.5 UPGRADE Zeroconf is a pure Python implementation of multicast DNS service discovery
• CVE-2026-47183 MEDIUM 6.5 UPGRADE Zeroconf is a pure Python implementation of multicast DNS service discovery
• CVE-2026-47180 MEDIUM 6.5 UPGRADE Zeroconf is a pure Python implementation of multicast DNS service discovery

FAQ

How do I fix zeroconf 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 zeroconf being exploited right now?

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

Which zeroconf CVE should I patch first?

CVE-2026-48487 currently ranks highest (34/100): Zeroconf is a pure Python implementation of multicast DNS service discovery.

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