Quick answers
- Is CVE-2026-70245 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-70245 being exploited in the wild.
- How severe is CVE-2026-70245?
- High severity, with a CVSS score of 7.8, published 13 October 2026.
- Which products and versions are affected?
- Microsoft Windows Ancillary Function Driver for WinSock.
- Is there a fix for CVE-2026-70245?
- 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-2026-70245 attacked?
- It is attacked with local access, in an operating system.
- Am I affected by CVE-2026-70245?
- Check whether you run Microsoft Windows Ancillary Function Driver for WinSock. 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 type confusion vulnerability in the Windows Ancillary Function Driver for WinSock (Winsock AFD) enables local privilege escalation. The vulnerability requires an authenticated attacker with local access to execute code, but no user interaction is needed. Exploitation allows the attacker to gain SYSTEM-level privileges.
Affected products
- Microsoft Windows Ancillary Function Driver for WinSock
Timeline
- 2026-10-13: disclosed