CVE-2026-88807
🔶 mediumSummary
A heap overflow in libXrender before 0.9.13 in RenderQueryPictFormats could be used by malicious X servers to inject code into attached X clients.
CVSS Score
-
EPSS Score
0.3
Exploit Probability
Published Date
2026-09-21
First Seen: 2026-09-24
🎯 CISA SSVC Assessment Updated: Sep 21, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Total
Complete system compromise possible
🏆 Discovered By
Adam Bedard working with TrendAI Zero Day Initiative
Claude:claude-opus-4-6 (tool)
SSVC data provided by
CISA
Last Modified
2026-09-22
Source
NVD 🔗
CVSS Vector 4.0
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE IDs (Weakness Types)