CVE-2026-70123: Microsoft Graphics Component numeric truncation privilege escalation

CVE-2026-70123 · Severity: high · CVSS 7.8 · Published 2026-10-13

A flaw in Microsoft's Graphics Component can allow a local user who already has some system access to gain higher-level privileges on their computer. This creates a path for attackers to escalate from a limited account to full administrative control of the system.

Technologies: Microsoft Graphics Component. Vendors: Microsoft.

Quick answers

Is CVE-2026-70123 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-70123 being exploited in the wild.
How severe is CVE-2026-70123?
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-2026-70123?
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-2026-70123 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2026-70123?
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 numeric truncation error in the Microsoft Graphics Component enables local privilege escalation by an authenticated attacker. The vulnerability requires local access and existing user privileges as a precondition; exploitation grants elevated privileges on the affected system. A fix is available from Microsoft.

Affected products

  • Microsoft Graphics Component

Timeline

  • 2026-10-13: disclosed

References

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