Quick answers
- Is CVE-2026-105491 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-105491 being exploited in the wild.
- How severe is CVE-2026-105491?
- High severity, with a CVSS score of 8.8, published 10 November 2026.
- Which products and versions are affected?
- Microsoft Windows Advanced Rasterization Platform.
- Is there a fix for CVE-2026-105491?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-105491 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-105491?
- Check whether you run Microsoft Windows Advanced Rasterization Platform. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A heap-based buffer overflow in the Windows Advanced Rasterization Platform can be exploited by an authenticated local attacker to corrupt heap memory and achieve privilege escalation. The vulnerability requires local access and prior authentication, allowing code execution at a higher privilege level.
Affected products
- Microsoft Windows Advanced Rasterization Platform
Timeline
- 2026-11-10: disclosed