CVE-2026-85338: Microsoft Graphics Component out-of-bounds read privilege elevation

CVE-2026-85338 · Severity: high · CVSS 7.8 · Published 2026-10-13

Microsoft's Graphics Component contains an out-of-bounds read vulnerability that allows an authenticated local attacker to escalate their privileges on the system. This could enable an attacker with limited account access to gain administrative control, potentially leading to data theft, malware installation, or system compromise.

Technologies: Microsoft Graphics Component. Vendors: Microsoft.

Quick answers

Is CVE-2026-85338 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-85338 being exploited in the wild.
How severe is CVE-2026-85338?
High severity, with a CVSS score of 7.8, published 13 October 2026.
Which products and versions are affected?
Microsoft Graphics Component.
Is there a fix for CVE-2026-85338?
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-2026-85338 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2026-85338?
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

An out-of-bounds read flaw exists in the Microsoft Graphics Component, exploitable by authorized local attackers to achieve privilege escalation. The vulnerability requires prior authentication and local access; successful exploitation grants elevated system privileges.

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.