pdf reader vulnerabilities and fixes

Recent CVEs affecting pdf reader, with upgrade or downgrade steps. 1 tracked.

Also searched as: pdfreader.

pdf reader has 1 tracked vulnerability, 0 critical. A fixed release or vendor patch exists for 1. Most recent: 2026-04-27. Highest priority: CVE-2026-5937 (score 19/100).

• CVE-2026-5937 MEDIUM 5.5 UPGRADE UPGRADE Insufficient parameter verification leads to the occurrence of format errors in files, which will trigger an u

FAQ

How do I fix pdf reader 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 pdf reader being exploited right now?

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

Which pdf reader CVE should I patch first?

CVE-2026-5937 currently ranks highest (19/100): Insufficient parameter verification leads to the occurrence of format errors in files, which will trigger an u.

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