CVE-2021-26406
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.4%
exploitation probability
0.4%top 64% of all CVEs
observed exploitation
nono source reports it
Insufficient validation in parsing Owner's
Certificate Authority (OCA) certificates in SEV (AMD Secure Encrypted Virtualization)
and SEV-ES user application can lead to a host crash potentially resulting in
denial of service.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
AMD · 1st Gen AMD EPYC™ ProcessorsAMD · 2nd Gen AMD EPYC™ ProcessorsAMD · 2nd Gen AMD Ryzen™ Threadripper™ Processors “Colfax”AMD · 3rd Gen AMD Ryzen™ Threadripper™ Processors “Castle Peak” HEDTAMD · AMD Ryzen™ 5000 Series Desktop Processors “Vermeer” AM4AMD · Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Dali”/”Dali” ULPAMD · Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics “Pollock”AMD · Ryzen™ 2000 Series Desktop Processors “Pinnacle Ridge”AMD · Ryzen™ 2000 series Desktop Processors “Raven Ridge” AM4AMD · Ryzen™ 2000 Series Mobile Processors “Raven Ridge” FP5AMD · Ryzen™ 3000 Series Desktop Processors “Matisse” AM4AMD · Ryzen™ 3000 Series Mobile processor, 2nd Gen AMD Ryzen™ Mobile Processors with Radeon™ Graphics “Picasso”AMD · Ryzen™ Threadripper™ PRO Processors “Castle Peak” WS