Quick answers
- Is CVE-2025-0027 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2025-0027 being exploited in the wild.
- How severe is CVE-2025-0027?
- Informational severity, published 10 November 2026.
- Which products and versions are affected?
- AMD Secure Encrypted Virtualization firmware.
- Is there a fix for CVE-2025-0027?
- 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-2025-0027 attacked?
- It is attacked with local access, in device firmware.
- Am I affected by CVE-2025-0027?
- Check whether you run Amd Secure Encrypted Virtualization firmware. 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
The vulnerability is an improper access control issue in AMD SEV firmware that fails to adequately protect the Reverse Map Table (RMP), a key component that enforces memory isolation in SEV-Secure Nested Paging (SEV-SNP) environments. A malicious hypervisor with direct hardware access can exploit this to bypass RMP protections and gain unauthorized access to guest-encrypted memory. The firmware must be patched to restore proper access controls.
Affected products
- AMD Secure Encrypted Virtualization firmware
Timeline
- 2026-11-10: disclosed