Quick answers
- Is CVE-2025-48516 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2025-48516 being exploited in the wild.
- How severe is CVE-2025-48516?
- Informational severity, with a CVSS score of 6.9, published 15 May 2026.
- Which products and versions are affected?
- AMD AGESA Bootloader Firmware.
- Is there a fix for CVE-2025-48516?
- 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-2025-48516 attacked?
- It is attacked with local access, in device firmware.
- Am I affected by CVE-2025-48516?
- Check whether you run Amd AGESA. 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 AMD AGESA Bootloader Firmware fails to properly secure the Power Management Integrated Circuit (PMIC) interface on DDR5 memory modules due to incorrect default permissions (CWE-276). A local attacker with low privileges can interact with this unprotected interface to modify voltage or power settings. This can be leveraged to cause a permanent denial of service (PDoS) by bricking the memory module or to compromise the integrity of data stored in memory. The vulnerability is addressed in updated AGESA versions provided by AMD to motherboard manufacturers.
Affected products
- AMD AGESA Bootloader Firmware
Timeline
- 2026-05-15: advisory: AMD published security bulletin AMD-SB-4017
- 2026-05-15: disclosed: CVE-2025-48516 published to the NVD dataset