AMD Ryzen 5000 Processors with Radeon Graphics Trusted OS integer overflow

CVSS Meta Temp Score
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CTI Interest Score
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4.0$0-$5k0.00

Summaryinfo

A vulnerability has been found in AMD Ryzen 5000 Processors with Radeon Graphics, Ryzen Threadripper 3000 Processors, Ryzen Threadripper PRO 3000WX Processors, Ryzen 5000 Mobile Processors with Radeon Graphics, Ryzen Threadripper PRO 5000 WX-Series Processors, Ryzen 5000 Desktop Processors, Athlon 3000 Mobile Processors with Radeon Graphics, Ryzen 3000 Desktop Processors, Ryzen 7030 Mobile processors with Radeon Graphics, Ryzen 4000 Desktop Processors, Ryzen 4000 Mobile Processors with Radeon Graphics, Ryzen 6000 Processors with Radeon Graphics, Ryzen Embedded R1000 Processors, Ryzen Embedded R2000 Processors, Ryzen Embedded 5000 Processors, Ryzen Embedded V1000 Processors, Ryzen Embedded V2000 Processors, Ryzen Embedded V3000 Processors, Radeon RX 5000 Graphics Products, Radeon PRO W5000 Graphics Products, Radeon RX 6000 Graphics Products, Radeon PRO W6000 Graphics Products, Radeon Instinct MI25 Graphics Products, Radeon PRO V520 Graphics Products and Radeon PRO V620 Graphics Products and classified as problematic. This issue affects some unknown processing of the component Trusted OS. The manipulation leads to integer overflow. This vulnerability is uniquely identified as CVE-2021-26377. Local access is required to approach this attack. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in AMD Ryzen 5000 Processors with Radeon Graphics, Ryzen Threadripper 3000 Processors, Ryzen Threadripper PRO 3000WX Processors, Ryzen 5000 Mobile Processors with Radeon Graphics, Ryzen Threadripper PRO 5000 WX-Series Processors, Ryzen 5000 Desktop Processors, Athlon 3000 Mobile Processors with Radeon Graphics, Ryzen 3000 Desktop Processors, Ryzen 7030 Mobile processors with Radeon Graphics, Ryzen 4000 Desktop Processors, Ryzen 4000 Mobile Processors with Radeon Graphics, Ryzen 6000 Processors with Radeon Graphics, Ryzen Embedded R1000 Processors, Ryzen Embedded R2000 Processors, Ryzen Embedded 5000 Processors, Ryzen Embedded V1000 Processors, Ryzen Embedded V2000 Processors, Ryzen Embedded V3000 Processors, Radeon RX 5000 Graphics Products, Radeon PRO W5000 Graphics Products, Radeon RX 6000 Graphics Products, Radeon PRO W6000 Graphics Products, Radeon Instinct MI25 Graphics Products, Radeon PRO V520 Graphics Products and Radeon PRO V620 Graphics Products and classified as problematic. This issue affects an unknown part of the component Trusted OS. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is availability. The summary by CVE is:

Insufficient parameter validation while allocating process space in the Trusted OS (TOS) may allow for a malicious userspace process to trigger an integer overflow, leading to a potential denial of service.

The advisory is shared at amd.com. The identification of this vulnerability is CVE-2021-26377 since 01/29/2021. The exploitation is known to be difficult. 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.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2025-1770). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Debian Linux
  • Ubuntu Linux
  • Oracle Linux
  • Dell PowerEdge
  • Lenovo Computer
  • HP Computer
  • AMD Prozessor

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.1
VulDB Meta Temp Score: 4.0

VulDB Base Score: 4.1
VulDB Temp Score: 3.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.1
CNA Vector (AMD): 🔒

CVSSv2info

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

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

01/29/2021 CVE reserved
09/06/2025 +1680 days Advisory disclosed
09/06/2025 +0 days VulDB entry created
12/13/2025 +98 days VulDB entry last update

Sourcesinfo

Advisory: amd.com
Status: Confirmed

CVE: CVE-2021-26377 (🔒)
GCVE (CVE): GCVE-0-2021-26377
GCVE (VulDB): GCVE-100-322997
CERT Bund: WID-SEC-2025-1770 - AMD Prozessoren: Mehrere Schwachstellen

Entryinfo

Created: 09/06/2025 20:00
Updated: 12/13/2025 15:39
Changes: 09/06/2025 20:00 (61), 12/13/2025 15:39 (7)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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