AMD EPYC Reverse Map Table improper synchronization

CVSS Meta Temp Score
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CTI Interest Score
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3.4$0-$5k0.00+

Summaryinfo

A vulnerability was found in AMD EPYC. It has been rated as problematic. The impacted element is an unknown function of the component Reverse Map Table. Performing a manipulation results in improper synchronization. This vulnerability is reported as CVE-2025-54508. The attack requires a local approach. No exploit exists.

Detailsinfo

A vulnerability was found in AMD EPYC (version unknown). It has been classified as problematic. This affects an unknown function of the component Reverse Map Table. The manipulation with an unknown input leads to a improper synchronization vulnerability. CWE is classifying the issue as CWE-662. The product utilizes multiple threads, processes, components, or systems to allow temporary access to a shared resource that can only be exclusive to one process at a time, but it does not properly synchronize these actions, which might cause simultaneous accesses of this resource by multiple threads or processes. This is going to have an impact on integrity, and availability. The summary by CVE is:

Improper validation of Reverse Map Table (RMP) entries in the Secure Encrypted Virtualization (SEV) firmware could allow a privileged attacker to trigger concurrent modifications to RMP entries without proper synchronization potentially resulting in loss of data integrity.

The advisory is shared at amd.com. This vulnerability is uniquely identified as CVE-2025-54508 since 07/23/2025. The exploitability is told to be easy. An attack has to be approached locally. Additional levels of successful authentication are required for exploitation. Neither technical details nor an exploit are publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 3.4
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.4
VulDB Temp Score: 3.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper synchronization
CWE: CWE-662
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

07/23/2025 CVE reserved
11/10/2026 +475 days Advisory disclosed
11/10/2026 +0 days VulDB entry created
11/10/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: amd.com
Status: Confirmed

CNA: AMD
CVE: CVE-2025-54508 (🔒)

GCVE (CVE): GCVE-0-2025-54508
GCVE (VulDB): GCVE-100-435057

Entryinfo

Created: 11/10/2026 23:13
Changes: 11/10/2026 23:13 (63)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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