Quick answers
- Is CVE-2026-84000 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-84000 being exploited in the wild.
- How severe is CVE-2026-84000?
- High severity, with a CVSS score of 7.8, published 8 September 2026.
- Which products and versions are affected?
- Microsoft Graphics Component.
- Is there a fix for CVE-2026-84000?
- 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-2026-84000 attacked?
- It is attacked with local access, in a software library.
- Am I affected by CVE-2026-84000?
- 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 vulnerability exists in Microsoft Graphics Component. The vulnerability requires local network access and authenticated user privileges to exploit. An attacker can trigger the overflow by sending specially crafted input to the Graphics Component, allowing arbitrary code execution in the context of the affected process. A fix is expected to be available through Microsoft security updates; systems should be patched as soon as updates are released.
Affected products
- Microsoft Graphics Component
Timeline
- 2026-09-08: disclosed