x vulnerabilities
Recent CVEs affecting x products. 3 tracked.
x has 3 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 3. Most recent: 2026-07-08. Highest priority: CVE-2026-56002 (score 39/100).
- CVE-2026-56002 HIGH 8.5 UPGRADE A heap bufferflow in pcfReadFont() due to missing glyph bounds checking in libXfont2 before 2.0.8 allows atta
- CVE-2026-56001 HIGH 8.5 UPGRADE A heap buffer overflow in BitmapScaleBitmaps in libXfont2 before 2.0.8 due to an overflowing 32bit size could
- CVE-2026-56003 HIGH 8.5 UPGRADE A heap buffer overflow due to missing size checking in the property buffer when parsing PCF files in libXfont2
FAQ
How do I fix x 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 x being exploited right now?
None of the tracked x CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which x CVE should I patch first?
CVE-2026-56002 currently ranks highest (39/100): A heap bufferflow in pcfReadFont() due to missing glyph bounds checking in libXfont2 before 2.0.8 allows atta.