PatchTheCVEcivetweb vulnerabilities
Recent CVEs affecting civetweb products. 1 tracked.
civetweb has 1 tracked vulnerability, 0 critical. A fixed release or vendor patch exists for 1. Most recent: 2026-11-06. Highest priority: CVE-2026-124040 (score 28/100).
- CVE-2026-124040 HIGH 8.1 UPGRADE CivetWeb through 1.16, when built with USE_HTTP2 and enable_http2 on, contains a use-after-free vulnerability
FAQ
How do I fix civetweb 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 civetweb being exploited right now?
None of the tracked civetweb CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which civetweb CVE should I patch first?
CVE-2026-124040 currently ranks highest (28/100): CivetWeb through 1.16, when built with USE_HTTP2 and enable_http2 on, contains a use-after-free vulnerability .