CVE-2026-102209: Microsoft Graphics Component heap buffer overflow privilege escalation

CVE-2026-102209 · Severity: high · CVSS 7 · Published 2026-10-13

Microsoft's Graphics Component contains a heap-based buffer overflow vulnerability that allows an authorized local user to escalate their privileges to a higher level of system access. This could enable an attacker with initial system access to gain administrative control and compromise the entire system.

Technologies: Microsoft Graphics Component. Vendors: Microsoft.

Quick answers

Is CVE-2026-102209 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-102209 being exploited in the wild.
How severe is CVE-2026-102209?
High severity, with a CVSS score of 7, published 13 October 2026.
Which products and versions are affected?
Microsoft Graphics Component.
Is there a fix for CVE-2026-102209?
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-2026-102209 attacked?
It is attacked with local access.
Am I affected by CVE-2026-102209?
Check whether you run Microsoft Graphics Component. 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 Microsoft Graphics Component that is exploitable through local attack vector. The vulnerability requires the attacker to be authenticated or already have local system access. Successful exploitation allows privilege escalation from a lower-privileged user to a higher privilege level.

Affected products

  • Microsoft Graphics Component

Timeline

  • 2026-10-13: disclosed

References

This page as Markdown. Free to reuse under CC BY 4.0 with a link back.