How severe is CVE-2021-26362?

CVE-2021-26362 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2021-26362 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-26362?

CVE-2021-26362 primarily affects Amd Radeon Software. In total, 36 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-26362?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-26362 published?

CVE-2021-26362 was published on 2022-05-12 and last updated on 2026-06-17.

CVE-2021-26362

CVE-2021-26362 is a high-severity vulnerability in Amd Radeon Software with a CVSS 3.x base score of 7.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.1)
CVSS v2: 6.6
EPSS exploit prediction: 0% (11th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Amd Radeon Software
Published: 2022-05-12
Last modified: 2026-06-17

Description

A malicious or compromised UApp or ABL may be used by an attacker to issue a malformed system call which results in mapping sensitive System Management Network (SMN) registers leading to a loss of integrity and availability.

Frequently asked questions

What is CVE-2021-26362?: A malicious or compromised UApp or ABL may be used by an attacker to issue a malformed system call which results in mapping sensitive System Management Network (SMN) registers leading to a loss of integrity and availability.
How severe is CVE-2021-26362?: CVE-2021-26362 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2021-26362 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (11th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-26362?: CVE-2021-26362 primarily affects Amd Radeon Software. In total, 36 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-26362?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-26362 published?: CVE-2021-26362 was published on 2022-05-12 and last updated on 2026-06-17.

References

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

Affected products (36)

cpe:2.3:a:amd:radeon_software:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_3_2200u_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_3_2300u_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_3_5125c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_3_5400u_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:athlon_3050ge_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:athlon_3150ge_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:athlon_3150g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_3_5425c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_3_5425u_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_2500u_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_2600_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_2600h_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_2600x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_5560u_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_5_5600u_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_5600x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_5625c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_5625u_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_5700g_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_5_5700ge_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_7_2700u_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_7_2700_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_7_2700x_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_7_2800h_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_7_5800u_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_7_5825c_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_7_5825u_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_9_5900hx_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:ryzen_9_5900hs_firmware:-:*:*:*:*:*:*:*

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