CVE-2026-88807High· 8.9▾ TwilightA heap overflow in libXrender before 0.9.13 in RenderQueryPictFormats could be used by malicious X servers to inject code into attached X clients.
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 49 · likelihood 0.1 · exploitation 0
Need a working PoC? Pro members can cast a request and our team develops one — it lands right here.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Sep 22.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
Last analysed / modified upstream
0.3%
0.3% → 0.3%
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.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-93522High· 7.8X.Org Server Glamor CopyArea Heap Buffer Overflow
CVE-2026-93523High· 7.8X.Org Server XInput2 PassiveUngrabDevice Out-of-Bounds Write
CVE-2026-93536Medium· 5.3X.Org Server GestureBuildSprite Use-After-Free
CVE-2026-93520High· 7.8X.Org Server XKB ChangeKeycodeRange Heap Out-of-Bounds Write
CVE-2026-93521High· 7.8X.Org Server RandR ChangeProviderProperty Heap Buffer Overflow
CVE-2026-93518High· 7.8X.Org Server XKB ResizeKeyType Numeric Truncation