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High severity · published Nov 9, 2022
CVE-2021-26391
Insufficient verification of multiple header signatures while loading a Trusted Application (TA) may allow an attacker with privileges to gain code execution in that TA or the…
7.8
CVSS
0.2%
EPSS
No
On KEV
Description
Insufficient verification of multiple header signatures while loading a Trusted Application (TA) may allow an attacker with privileges to gain code execution in that TA or the OS/kernel.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 8% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ED
Enterprise Driver · Amd
before 22.10.20 · source: NVD
RP
Radeon Pro Software · Amd
before 22.q2 · source: NVD
RR
Radeon RX Vega 56 Firmware · Amd
All versions, or not specified · source: NVD
RR
Radeon RX Vega 64 Firmware · Amd
All versions, or not specified · source: NVD
RS
Radeon Software · Amd
before 22.5.2 · source: NVD
R3
Ryzen 3 5300g Firmware · Amd
All versions, or not specified · source: NVD
R3
Ryzen 3 5300ge Firmware · Amd
All versions, or not specified · source: NVD
R3
Ryzen 3 5300u Firmware · Amd
All versions, or not specified · source: NVD
R3
Ryzen 3 5400u Firmware · Amd
All versions, or not specified · source: NVD
R5
Ryzen 5 5500u Firmware · Amd
All versions, or not specified · source: NVD
R5
Ryzen 5 5560u Firmware · Amd
All versions, or not specified · source: NVD
R5
Ryzen 5 5600g Firmware · Amd
All versions, or not specified · source: NVD
Affected product
ED
Enterprise Driver
Amd
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-26391
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-26391
Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1029
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