PatchTheCVEcfitsio vulnerabilities and fixes
Recent CVEs affecting cfitsio, with upgrade or downgrade steps. 2 tracked.
cfitsio has 2 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 2. Most recent: 2026-10-15. Highest priority: CVE-2026-111124 (score 30/100).
- CVE-2026-111124 MEDIUM 6.1 UPGRADE CFITSIO through 4.7.0 contains a heap-based out-of-bounds read vulnerability in the imcompress.c unquantize he
- CVE-2026-111125 MEDIUM 6.1 UPGRADE CFITSIO through 4.7.0 contains a heap-based out-of-bounds read vulnerability in the HCOMPRESS tile decoder tha
FAQ
How do I fix cfitsio 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 cfitsio being exploited right now?
None of the tracked cfitsio CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which cfitsio CVE should I patch first?
CVE-2026-111124 currently ranks highest (30/100): CFITSIO through 4.7.0 contains a heap-based out-of-bounds read vulnerability in the imcompress.c unquantize he.