CVE-2021-26367 json
A malicious attacker in x86 can misconfigure the Trusted Memory Regions (TMRs), which may allow the attacker to set an arbitrary address ra…
published 2024-08-13 2 y ago modified 2026-06-17 4 mo ago also EUVD-2021-13173
- cvss
- 5.7
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 4%
- public exploits
- 0
- none known
Summary
A malicious attacker in x86 can misconfigure the Trusted Memory Regions (TMRs), which may allow the attacker to set an arbitrary address range for the TMR, potentially leading to a loss of integrity and availability.
Patch / fix
- AMD AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics ComboAM4v2 PI 1.2.0.5
- AMD AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics ComboAM4PI 1.0.0.9, ComboAM4v2 PI 1.2.0.8
- AMD AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics ComboAM4v2 PI 1.2.0.5
- AMD AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics PicassoPI-FP5 1.0.0.E, PollockPI-FT5 1.0.0.4
- AMD AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics RenoirPI-FP6 1.0.0.7
- AMD AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics CezannePI-FP6 1.0.0.6
- AMD AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics CezannePI-FP6 1.0.0.6
- AMD AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics CezannePI-FP6 1.0.0.6
- AMD AMD Radeon™ RX 6000 Series Graphics Cards AMD Software: Adrenalin Edition 23.12.1 (23.30.13.01)
- AMD AMD Radeon™ PRO W6000 Series Graphics Cards AMD Software: PRO Edition 23.Q4 (23.30.13.03)
- AMD AMD Ryzen™ Embedded R1000 Series Processors EmbeddedPI-FP5 1.2.0.A
- AMD AMD Ryzen™ Embedded R2000 Series Processors EmbeddedR2KPI-FP5 1.0.0.2
- AMD AMD Ryzen™ Embedded V1000 Series Processors EmbeddedPI-FP5 1.2.0.A
- AMD AMD Ryzen™ Embedded V2000 Series Processors EmbeddedPI-FP6 1.0.0.6
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.16% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.7 | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:H/A:H |
| NVD | 3.1 | 6.0 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H |
Affected products
- AMD AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics
- AMD AMD Athlon™ 3000 Series Desktop Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics
- AMD AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics
- AMD AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 5000 Series Processors with Radeon™ Graphics
- AMD AMD Ryzen™ 3000 Series Processors with Radeon™ Graphics
- AMD AMD Radeon™ RX 6000 Series Graphics Cards
- AMD AMD Radeon™ PRO W6000 Series Graphics Cards
- AMD AMD Ryzen™ Embedded R1000 Series Processors
- AMD AMD Ryzen™ Embedded R2000 Series Processors
- AMD AMD Ryzen™ Embedded V1000 Series Processors
- AMD AMD Ryzen™ Embedded V2000 Series Processors
References
-
amd.com
/en/resources/product-security/bulletin/amd-sb-4004.html
vendor-advisory
-
amd.com
/en/resources/product-security/bulletin/amd-sb-6005.html
vendor-advisory
Sources
- CVE List CVE-2021-26367
- NVD CVE-2021-26367
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