Vulnerability Details : CVE-2021-26382
An attacker with root account privileges can load any legitimately signed firmware image into the Audio Co-Processor (ACP,) irrespective of the respective signing key being declared as usable for authenticating an ACP firmware image, potentially resulting in a denial of service.
Vulnerability category: Denial of service
Products affected by CVE-2021-26382
- cpe:2.3:o:amd:ryzen_7_pro_3700u_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_9_5980hx_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_9_5980hs_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_7_5825u_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_9_5900hx_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_9_5900hs_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_5_5625u_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_7_5800h_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_7_5800hs_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_5_5600h_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_5_5600hs_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_7_5800u_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_5_5600u_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3_5425u_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3_5400u_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_7_5700g_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_7_5700ge_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3_5300g_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3_5300ge_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_7_5825c_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_5_5625c_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_5_5560u_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3_5425c_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3_5125c_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_5_5600g_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_5_5600ge_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_7_3750h_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_7_3700u_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_5_3550h_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_5_3500u_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3_3300u_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3_3200u_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_3_3250u_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_5_3580u_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_7_3780u_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-26382
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 10 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-26382
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.4
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H |
0.8
|
3.6
|
NIST |
References for CVE-2021-26382
-
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027
AMD Client Vulnerabilities – May 2022 | AMDVendor Advisory
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