Vulnerability Details : CVE-2021-26402
Insufficient bounds checking in ASP (AMD Secure Processor) firmware while handling BIOS mailbox commands, may allow an attacker to write partially-controlled data out-of-bounds to SMM or SEV-ES regions which may lead to a potential loss of integrity and availability.
Vulnerability category: Memory Corruption
Products affected by CVE-2021-26402
- cpe:2.3:o:amd:epyc_7f72_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7f52_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7f32_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7h12_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7742_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7702_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7702p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7662_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7642_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7552_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7542_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7532_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7502_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7502p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7452_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7402_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7402p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7352_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7302_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7302p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7282_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7272_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7262_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7252_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7232p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7763_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7713p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7713_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7663_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7643_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_75f3_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7543p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7543_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7513_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7453_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_74f3_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7443p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7443_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7413_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_73f3_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7343_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7313p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7313_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_72f3_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7003_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7002_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7773x_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7573x_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7373x_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7743_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-26402
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 13 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-26402
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
7.1
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
1.8
|
5.2
|
NIST |
CWE ids for CVE-2021-26402
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-26402
-
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032
Access DeniedVendor Advisory
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