CVE-2021-26330
CVE-2021-26330 is a medium-severity vulnerability in Amd Epyc 7003 Firmware with a CVSS 3.x base score of 5.5. 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: Medium (CVSS 3.x base score 5.5)
- CVSS v2: 2.1
- EPSS exploit prediction: 0% (11th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Amd Epyc 7003 Firmware
- Published:
- Last modified:
Description
AMD System Management Unit (SMU) may experience a heap-based overflow which may result in a loss of resources.
Frequently asked questions
- What is CVE-2021-26330?
- AMD System Management Unit (SMU) may experience a heap-based overflow which may result in a loss of resources.
- How severe is CVE-2021-26330?
- CVE-2021-26330 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
- Is CVE-2021-26330 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-2021-26330?
- CVE-2021-26330 primarily affects Amd Epyc 7003 Firmware. In total, 58 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2021-26330?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2021-26330 published?
- CVE-2021-26330 was published on 2021-11-16 and last updated on 2026-06-17.
References
Affected products (58)
- cpe:2.3:o:amd:epyc_7003_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7002_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7001_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_72f3_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7313_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7313p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7343_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_73f3_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7413_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7443_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7443p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7453_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_74f3_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7513_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7543_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7543p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_75f3_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7643_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7663_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7713_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7713p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7763_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7232p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7252_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7262_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7272_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7282_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7302_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7302p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7352_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7402_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7402p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7452_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7502_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7502p_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7532_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7542_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7552_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7642_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7662_firmware:*:*:*:*:*:*:*:*
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