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

Source: https://junglewise.ai/threats/cve-2026-70123-numeric-truncation-error-in-microsoft-graphics-component-allows  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-13. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

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](https://junglewise.ai/threats/technologies/graphics-component). Vendors: [Microsoft](https://junglewise.ai/threats/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

- [https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70123](https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-70123)

## Related threats

- [Microsoft Graphics Component out-of-bounds read](https://junglewise.ai/threats/cve-2026-112754-out-of-bounds-read-in-microsoft-graphics-component-allows-an)
- [Microsoft Graphics Component stack buffer overflow](https://junglewise.ai/threats/cve-2026-85881-stack-based-buffer-overflow-in-microsoft-graphics-component)
- [Microsoft Graphics Component out-of-bounds read privilege elevation](https://junglewise.ai/threats/cve-2026-85338-out-of-bounds-read-in-microsoft-graphics-component-allows-an)
- [Microsoft Graphics Component information disclosure](https://junglewise.ai/threats/cve-2026-105731-use-of-uninitialized-resource-in-microsoft-graphics-component)
- [Microsoft Graphics Component heap buffer overflow privilege escalation](https://junglewise.ai/threats/cve-2026-102209-heap-based-buffer-overflow-in-microsoft-graphics-component)