Quick answers
- Is CVE-2026-69921 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-69921 being exploited in the wild.
- How severe is CVE-2026-69921?
- High severity, with a CVSS score of 7.8, published 8 September 2026.
- Which products and versions are affected?
- Microsoft Windows Print Spooler <UNKNOWN>.
- Is there a fix for CVE-2026-69921?
- 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-2026-69921 attacked?
- It is attacked with local access.
- Am I affected by CVE-2026-69921?
- Check whether you run Microsoft Windows Print Spooler 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 the Windows Print Spooler Components. The vulnerability allows an authorized attacker with local access to trigger a memory corruption condition, leading to privilege escalation from a lower-privileged account to SYSTEM or Administrator level. Attack requires local authentication and user interaction is not required once access is established. An attacker can leverage this to execute arbitrary code with elevated privileges, bypassing security boundaries. A patch is available from Microsoft.
Affected products
- Microsoft Windows Print Spooler <UNKNOWN>
Timeline
- 2026-09-08: disclosed