CVE-2021-26396 | BDVDB-2026-192550 Detail

AMD3rd Gen EPYC

Description#

Insufficient validation of address mapping to IO in ASP (AMD Secure Processor) may result in a loss of memory integrity in the SNP guest.

Per CVSS v3.1: confidentiality impact none, integrity impact low, availability impact low. Attack vector: local.

No public exploit known

4.4 Medium

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 1.6.

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Not classified

No specific action is recorded in the source data. Check the references for vendor guidance.

Not available

4.4 Medium

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

Not available

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).