PatchTheCVEhiawatha webserver vulnerabilities and fixes
Recent CVEs affecting hiawatha webserver, with upgrade or downgrade steps. 1 tracked.
Also searched as: hiawathawebserver.
hiawatha webserver has 1 tracked vulnerability, 0 critical. A fixed release or vendor patch exists for 0. Most recent: 2026-01-26. Highest priority: CVE-2025-57785 (score 36/100).
- CVE-2025-57785 MEDIUM 6.5 DOWNGRADE A Double Free in XSLT `show_index` has been identified in Hiawatha webserver version 11.7 which allows an unau
FAQ
How do I fix hiawatha webserver 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 hiawatha webserver being exploited right now?
None of the tracked hiawatha webserver CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which hiawatha webserver CVE should I patch first?
CVE-2025-57785 currently ranks highest (36/100): A Double Free in XSLT `show_index` has been identified in Hiawatha webserver version 11.7 which allows an unau.