CVE-2021-26332
CVE-2021-26332 is a high-severity vulnerability in Amd Epyc 7763 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.
Key facts
- Severity: High (CVSS 3.x base score 7.1)
- CVSS v2: 6.6
- EPSS exploit prediction: 0% (13th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Amd Epyc 7763 Firmware
- Published:
- Last modified:
Description
Failure to verify SEV-ES TMR is not in MMIO space, SEV-ES FW could result in a potential loss of integrity or availability.
Frequently asked questions
- What is CVE-2021-26332?
- Failure to verify SEV-ES TMR is not in MMIO space, SEV-ES FW could result in a potential loss of integrity or availability.
- How severe is CVE-2021-26332?
- CVE-2021-26332 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-2021-26332 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2021-26332?
- CVE-2021-26332 primarily affects Amd Epyc 7763 Firmware. In total, 23 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2021-26332?
- 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-2021-26332 published?
- CVE-2021-26332 was published on 2022-05-10 and last updated on 2026-06-17.
References
Affected products (23)
- cpe:2.3:o:amd:epyc_7763_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7713p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7713_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7663_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7643_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_75f3_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7543p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7543_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7513_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7453_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_74f3_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7443p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7443_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7413_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_73f3_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7343_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7313p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7313_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_72f3_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7773x_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7473x_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7573x_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7373x_firmware:*:*:*:*:*:*:*:*
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