Executive brief
Windows GDI+ is a core graphics library used by Windows applications to render images and graphics. An integer underflow vulnerability allows an authorized attacker to execute code with elevated privileges, potentially compromising system security and enabling unauthorized access to sensitive data or system resources.
Technical details
An integer underflow (wrap or wraparound) vulnerability exists in Windows GDI+, a kernel-mode graphics rendering component. The vulnerability allows an authorized attacker with network connectivity to trigger the underflow condition, leading to memory corruption and privilege escalation from authorized user context to system or higher privilege level. The attack requires prior authentication or authorization; network reachability is confirmed but the precise triggering mechanism is not detailed in available references. Patches are expected from Microsoft through standard security updates.
Affected products
- Microsoft Windows GDI+ <UNKNOWN>
Timeline
- 2026-09-08: disclosed