Quick answers
- Is CVE-2026-119834 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-119834 being exploited in the wild.
- How severe is CVE-2026-119834?
- High severity, with a CVSS score of 7.8, published 10 November 2026.
- Which products and versions are affected?
- Microsoft Windows Subsystem for Linux.
- Is there a fix for CVE-2026-119834?
- 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-2026-119834 attacked?
- It is attacked with local access, in an operating system.
- Am I affected by CVE-2026-119834?
- Check whether you run Microsoft Windows Subsystem For Linux. 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 exists in Windows Subsystem for Linux, exploitable by an authorized local attacker to achieve privilege escalation. The vulnerability requires local access and prior authentication on the system. Successful exploitation grants the attacker elevated privileges, potentially leading to complete system compromise.
Affected products
- Microsoft Windows Subsystem for Linux
Timeline
- 2026-11-10: disclosed