CVE-2025-48516: CWE-276 Incorrect Default Permissions in AMD AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics
CVE-2025-48516 is a vulnerability in AMD Ryzen 4000 Series Mobile Processors with Radeon Graphics involving insecure default permissions in the AGESA Bootloader Firmware. The issue stems from an insecure default configuration of the DDR5 memory module, allowing a local attacker with user privileges to abuse the unprotected PMIC interface. This could lead to a permanent denial of service or impact the integrity of the memory module. The vulnerability has a medium severity rating with a CVSS score of 6.9. No official patch or remediation guidance has been provided by AMD as of the publication date. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
This vulnerability (CVE-2025-48516) involves incorrect default permissions (CWE-276) in the AGESA Bootloader Firmware for AMD Ryzen 4000 Series Mobile Processors with Radeon Graphics. Specifically, the DDR5 memory module is configured insecurely by default, which allows a local user with limited privileges to access the unprotected PMIC interface. Exploiting this flaw could enable the attacker to cause a permanent denial of service or compromise the integrity of the memory module. The CVSS 4.0 vector indicates local attack vector, low attack complexity, no user interaction, low privilege required, and high impact on availability. No patch or official remediation level has been disclosed by AMD.
Potential Impact
An attacker with local user privileges could exploit this vulnerability to cause a permanent denial of service or affect the integrity of the DDR5 memory module by abusing the unprotected PMIC interface. This could disrupt system stability or cause hardware-level issues. There are no reports of known exploits in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official remediation or patch has been published by AMD, users should monitor AMD's advisories for updates. Until a fix is available, limiting local user access and applying standard privilege management may reduce risk but do not fully mitigate the vulnerability.
CVE-2025-48516: CWE-276 Incorrect Default Permissions in AMD AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics
Description
CVE-2025-48516 is a vulnerability in AMD Ryzen 4000 Series Mobile Processors with Radeon Graphics involving insecure default permissions in the AGESA Bootloader Firmware. The issue stems from an insecure default configuration of the DDR5 memory module, allowing a local attacker with user privileges to abuse the unprotected PMIC interface. This could lead to a permanent denial of service or impact the integrity of the memory module. The vulnerability has a medium severity rating with a CVSS score of 6.9. No official patch or remediation guidance has been provided by AMD as of the publication date. There are no known exploits in the wild at this time.
CVSS v4.0
Score 6.9medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2025-48516) involves incorrect default permissions (CWE-276) in the AGESA Bootloader Firmware for AMD Ryzen 4000 Series Mobile Processors with Radeon Graphics. Specifically, the DDR5 memory module is configured insecurely by default, which allows a local user with limited privileges to access the unprotected PMIC interface. Exploiting this flaw could enable the attacker to cause a permanent denial of service or compromise the integrity of the memory module. The CVSS 4.0 vector indicates local attack vector, low attack complexity, no user interaction, low privilege required, and high impact on availability. No patch or official remediation level has been disclosed by AMD.
Potential Impact
An attacker with local user privileges could exploit this vulnerability to cause a permanent denial of service or affect the integrity of the DDR5 memory module by abusing the unprotected PMIC interface. This could disrupt system stability or cause hardware-level issues. There are no reports of known exploits in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official remediation or patch has been published by AMD, users should monitor AMD's advisories for updates. Until a fix is available, limiting local user access and applying standard privilege management may reduce risk but do not fully mitigate the vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- AMD
- Date Reserved
- 2025-05-22T16:34:07.747Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a068dc1ec166c07b09ac9ee
Added to database: 05/15/2026, 03:06:41 UTC
Last enriched: 05/22/2026, 15:35:19 UTC
Last updated: 07/31/2026, 19:22:55 UTC
Views: 93
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