Quick answers
- Is CVE-2026-84004 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-84004 being exploited in the wild.
- How severe is CVE-2026-84004?
- Medium severity, with a CVSS score of 5.5, published 10 November 2026.
- Which products and versions are affected?
- AMD Zen processors.
- Is there a fix for CVE-2026-84004?
- 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-2026-84004 attacked?
- It is attacked with local access, in device firmware.
- Am I affected by CVE-2026-84004?
- Check whether you run Amd Zen processors. 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
This is an information disclosure vulnerability in AMD Zen processors where processor-level optimizations can remove or modify security-critical code sequences. An authorized attacker with local access can exploit this flaw to bypass security protections and access sensitive data. The attack requires local system access and authorization.
Affected products
- AMD Zen processors
Timeline
- 2026-11-10: disclosed