libucl vulnerabilities and fixes

Recent CVEs affecting libucl, with upgrade or downgrade steps. 2 tracked.

libucl has 2 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 2. Most recent: 2026-03-17. Highest priority: CVE-2026-0708 (score 42/100).

• CVE-2026-0708 HIGH 8.3 UPGRADE A flaw was found in libucl
• CVE-2025-6499 LOW 3.3 UPGRADE A vulnerability classified as problematic was found in vstakhov libucl up to 0.9.2

FAQ

How do I fix libucl 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 libucl being exploited right now?

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

Which libucl CVE should I patch first?

CVE-2026-0708 currently ranks highest (42/100): A flaw was found in libucl.

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