Quick answers
- Is CVE-2026-62810 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-62810 being exploited in the wild.
- How severe is CVE-2026-62810?
- High severity, with a CVSS score of 7.8, published 8 September 2026.
- Which products and versions are affected?
- Microsoft Windows Server <UNKNOWN>.
- Is there a fix for CVE-2026-62810?
- 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-2026-62810 attacked?
- It is attacked with local access, in an operating system.
- Am I affected by CVE-2026-62810?
- Check whether you run Microsoft Windows Server at an affected version. 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 Microsoft Active Directory Certificate Services (AD CS), a core component of Windows Server environments for certificate lifecycle management. The vulnerability requires an attacker to have valid local authentication credentials and physical or remote local access to exploit. An authorized attacker can trigger the overflow condition to gain SYSTEM-level privilege escalation on the affected host. The vulnerability has been assigned CVSS 7.8 and was published in September 2026; patch availability and public exploit status can be verified through Microsoft's security bulletin.
Affected products
- Microsoft Windows Server <UNKNOWN>
Timeline
- 2026-09-08: disclosed