Out-of-bounds Read in AMD 2nd Gen Epyc™ Processors
CVE-2021-26345
Failure to validate the value in APCB may allow a privileged attacker to tamper with the APCB token to force an out-of-bounds memory read potentially resulting in a denial of service.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 1.9 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.004 (36.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 36th percentile — 36.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- AMD 2nd Gen Epyc™ Processors — versions various
- AMD 3rd Gen Epyc™ Processors — versions various
- AMD 4th Gen Epyc™ Processors — versions various
- AMD Epyc™ Embedded 7002 — versions various
- AMD Epyc™ Embedded 7003 — versions various
- AMD Epyc 7203
- AMD Epyc 7203 Firmware
- AMD Epyc 7203p
- AMD Epyc 7203p Firmware
- AMD Epyc 7232p
Weakness classification (CWE)
References
- www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3002 (vendor-advisory, Vendor Advisory)
- www.amd.com/en/corporate/product-security/bulletin/AMD-SB-5001
Frequently asked questions
- What is CVE-2021-26345?
- CVE-2021-26345 is a low-severity vulnerability in AMD 2nd Gen Epyc™ Processors, classified under Out-of-bounds Read. CVSS score: 1.9/10. Published 2023-11-14.
- How severe is CVE-2021-26345?
- Low severity. CVSS v3 base score is 1.9 out of 10.