CVE-2021-46757
CVE-2021-46757 is a high-severity vulnerability in Amd Ryzen Embedded 5950e Firmware with a CVSS 3.x base score of 7.8. 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-119.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- EPSS exploit prediction: 0% (8th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2021-33413
- Weakness: CWE-119
- Affected product: Amd Ryzen Embedded 5950e Firmware
- Published:
- Last modified:
Description
Insufficient checking of memory buffer in ASP Secure OS may allow an attacker with a malicious TA to read/write to the ASP Secure OS kernel virtual address space potentially leading to privilege escalation.
Frequently asked questions
- What is CVE-2021-46757?
- Insufficient checking of memory buffer in ASP Secure OS may allow an attacker with a malicious TA to read/write to the ASP Secure OS kernel virtual address space potentially leading to privilege escalation.
- How severe is CVE-2021-46757?
- CVE-2021-46757 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2021-46757 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-2021-46757?
- CVE-2021-46757 primarily affects Amd Ryzen Embedded 5950e Firmware. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2021-46757?
- 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.
- Does CVE-2021-46757 have an EU (EUVD) identifier?
- Yes. CVE-2021-46757 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2021-33413.
- When was CVE-2021-46757 published?
- CVE-2021-46757 was published on 2024-02-13 and last updated on 2026-06-17.
References
Affected products (10)
- cpe:2.3:o:amd:ryzen_embedded_5950e_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_embedded_5900e_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_embedded_5800e_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_embedded_5600e_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_embedded_v2516_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_embedded_v2546_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_embedded_v2718_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_embedded_v2748_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_embedded_r2312_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:ryzen_embedded_r2314_firmware:*:*:*:*:*:*:*:*
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