How severe is CVE-2021-46779?

CVE-2021-46779 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-2021-46779 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-46779?

CVE-2021-46779 primarily affects Amd Romepi Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-46779?

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-2021-46779 published?

CVE-2021-46779 was published on 2023-01-11 and last updated on 2026-06-17.

CVE-2021-46779

CVE-2021-46779 is a high-severity vulnerability in Amd Romepi Firmware 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. The underlying weakness is classified as CWE-787.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Amd Romepi Firmware
Published: 2023-01-11
Last modified: 2026-06-17

Description

Insufficient input validation in SVC_ECC_PRIMITIVE system call in a compromised user application or ABL may allow an attacker to corrupt ASP (AMD Secure Processor) OS memory which may lead to potential loss of integrity and availability.

Frequently asked questions

What is CVE-2021-46779?: Insufficient input validation in SVC_ECC_PRIMITIVE system call in a compromised user application or ABL may allow an attacker to corrupt ASP (AMD Secure Processor) OS memory which may lead to potential loss of integrity and availability.
How severe is CVE-2021-46779?: CVE-2021-46779 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-2021-46779 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-46779?: CVE-2021-46779 primarily affects Amd Romepi Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-46779?: 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-2021-46779 published?: CVE-2021-46779 was published on 2023-01-11 and last updated on 2026-06-17.

References

https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032

Affected products (3)

cpe:2.3:o:amd:romepi_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:milanpi_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:amd:naplespi_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Amd Romepi Firmware

CVE-2023-20522 — High (CVSS 7.5): Insufficient input validation in ASP may allow an attacker with a malicious BIOS to potentially cause a denial of…
CVE-2021-46767 — Medium (CVSS 6.1): Insufficient input validation in the ASP may allow an attacker with physical access, unauthorized write access to…
CVE-2021-46768 — Medium (CVSS 5.5): Insufficient input validation in SEV firmware may allow an attacker to perform out-of-bounds memory reads within the…
CVE-2021-26407 — Medium (CVSS 5.5): A randomly generated Initialization Vector (IV) may lead to a collision of IVs with the same key potentially resulting…
CVE-2022-23813 — Medium (CVSS 5.3): The software interfaces to ASP and SMU may not enforce the SNP memory security policy resulting in a potential loss of…

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