How severe is CVE-2021-26382?

CVE-2021-26382 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-26382 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-26382?

CVE-2021-26382 primarily affects Amd Ryzen 7 5700g Firmware. In total, 35 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-26382?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-26382 published?

CVE-2021-26382 was published on 2022-07-14 and last updated on 2026-06-17.

CVE-2021-26382

CVE-2021-26382 is a medium-severity vulnerability in Amd Ryzen 7 5700g Firmware with a CVSS 3.x base score of 4.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 3.x base score 4.4)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Amd Ryzen 7 5700g Firmware
Published: 2022-07-14
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.
How severe is CVE-2021-26382?: CVE-2021-26382 has a CVSS 3.x base score of 4.4, rated medium severity. It is exploitable over local access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-26382 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-26382?: CVE-2021-26382 primarily affects Amd Ryzen 7 5700g Firmware. In total, 35 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-26382?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-26382 published?: CVE-2021-26382 was published on 2022-07-14 and last updated on 2026-06-17.

References

https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1027

Affected products (35)

cpe:2.3:o:amd:ryzen_7_5700g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_7_5700ge_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_3_5300g_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_3_5300ge_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_7_5825c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_7_5800h_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_5625u_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_7_5800hs_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_5625c_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_5_5560u_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_3_5425u_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_3_5425c_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_3_5400u_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_3_5125c_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_3_3300u_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_3500u_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_3550h_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_3580u_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_7_3700u_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_7_pro_3700u_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_7_3750h_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_7_3780u_firmware:*:*:*:*:*:*:*:*

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