Quick answers
- Is CVE-2026-113855 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-113855 being exploited in the wild.
- How severe is CVE-2026-113855?
- High severity, with a CVSS score of 7.5, published 10 November 2026.
- Which products and versions are affected?
- Microsoft Windows DNS.
- Is there a fix for CVE-2026-113855?
- 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-2026-113855 attacked?
- It is attacked from the adjacent network.
- Am I affected by CVE-2026-113855?
- Check whether you run Microsoft Windows DNS. 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 use-of-uninitialized-resource flaw in Windows DNS allows remote code execution via an adjacent network attack vector without requiring authentication. The vulnerability enables an attacker to execute arbitrary code on the DNS server, potentially compromising DNS resolution and enabling traffic redirection or lateral movement.
Affected products
- Microsoft Windows DNS
Timeline
- 2026-11-10: disclosed