CVE-2021-26340
High
Description
A malicious hypervisor in conjunction with an unprivileged attacker process inside an SEV/SEV-ES guest VM may fail to flush the Translation Lookaside Buffer (TLB) resulting in unexpected behavior inside the virtual machine (VM).
SeverityHigh
CVSS8.4
Exploit probability—
ProductAmd Epyc 7001 Firmware
PublishedDec 10, 2021
First seenDec 10, 2021
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| amd epyc_7001_firmware | No range specified | — |
| amd epyc_7232p_firmware | No range specified | — |
| amd epyc_7251_firmware | No range specified | — |
| amd epyc_7261_firmware | No range specified | — |
| amd epyc_7252_firmware | No range specified | — |
| amd epyc_74f3_firmware | No range specified | — |
| amd epyc_7501_firmware | No range specified | — |
| amd epyc_7502_firmware | No range specified | — |
| amd epyc_7502p_firmware | No range specified | — |
| amd epyc_7513_firmware | No range specified | — |
| amd epyc_7532_firmware | No range specified | — |
| amd epyc_7542_firmware | No range specified | — |
| amd epyc_7543_firmware | No range specified | — |
| amd epyc_7543p_firmware | No range specified | — |
| amd epyc_7551_firmware | No range specified | — |
| amd epyc_7551p_firmware | No range specified | — |
| amd epyc_7552_firmware | No range specified | — |
| amd epyc_75f3_firmware | No range specified | — |
| amd epyc_7601_firmware | No range specified | — |
| amd epyc_7642_firmware | No range specified | — |
| amd epyc_7643_firmware | No range specified | — |
| amd epyc_7662_firmware | No range specified | — |
| amd epyc_7663_firmware | No range specified | — |
| amd epyc_7702p_firmware | No range specified | — |
| amd epyc_7702_firmware | No range specified | — |
| amd epyc_7713_firmware | No range specified | — |
| amd epyc_7713p_firmware | No range specified | — |
| amd epyc_7742_firmware | No range specified | — |
| amd epyc_7763_firmware | No range specified | — |
| amd epyc_7f32_firmware | No range specified | — |
| amd epyc_7f52_firmware | No range specified | — |
| amd epyc_7262_firmware | No range specified | — |
| amd epyc_7272_firmware | No range specified | — |
| amd epyc_7281_firmware | No range specified | — |
| amd epyc_7282_firmware | No range specified | — |
| amd epyc_72f3_firmware | No range specified | — |
| amd epyc_7302_firmware | No range specified | — |
| amd epyc_7301_firmware | No range specified | — |
| amd epyc_7302p_firmware | No range specified | — |
| amd epyc_7313_firmware | No range specified | — |
| amd epyc_7313p_firmware | No range specified | — |
| amd epyc_7343_firmware | No range specified | — |
| amd epyc_7351_firmware | No range specified | — |
| amd epyc_7351p_firmware | No range specified | — |
| amd epyc_7352_firmware | No range specified | — |
| amd epyc_7371_firmware | No range specified | — |
| amd epyc_73f3_firmware | No range specified | — |
| amd epyc_7401_firmware | No range specified | — |
| amd epyc_7401p_firmware | No range specified | — |
| amd epyc_7402_firmware | No range specified | — |
| amd epyc_7402p_firmware | No range specified | — |
| amd epyc_7413_firmware | No range specified | — |
| amd epyc_7443p_firmware | No range specified | — |
| amd epyc_7443_firmware | No range specified | — |
| amd epyc_7451_firmware | No range specified | — |
| amd epyc_7452_firmware | No range specified | — |
| amd epyc_7453_firmware | No range specified | — |
| amd epyc_7f72_firmware | No range specified | — |
| amd epyc_7h12_firmware | No range specified | — |
| amd epyc_embedded_3101_firmware | No range specified | — |
| amd epyc_embedded_3151_firmware | No range specified | — |
| amd epyc_embedded_3201_firmware | No range specified | — |
| amd epyc_embedded_3251_firmware | No range specified | — |
| amd epyc_embedded_3255_firmware | No range specified | — |
| amd epyc_embedded_3351_firmware | No range specified | — |
| amd epyc_embedded_3451_firmware | No range specified | — |
| amd epyc_embedded_7601_firmware | No range specified | — |
| amd epyc_embedded_7551_firmware | No range specified | — |
| amd epyc_embedded_7501_firmware | No range specified | — |
| amd epyc_embedded_7451_firmware | No range specified | — |
| amd epyc_embedded_7401_firmware | No range specified | — |
| amd epyc_embedded_7371_firmware | No range specified | — |
| amd epyc_embedded_7351_firmware | No range specified | — |
| amd epyc_embedded_7301_firmware | No range specified | — |
| amd epyc_embedded_7281_firmware | No range specified | — |
| amd epyc_embedded_7261_firmware | No range specified | — |
| amd epyc_embedded_7251_firmware | No range specified | — |
| amd epyc_embedded_755p_firmware | No range specified | — |
| amd epyc_embedded_740p_firmware | No range specified | — |
| amd epyc_embedded_735p_firmware | No range specified | — |
| amd epyc_embedded_7h12_firmware | No range specified | — |
| amd epyc_embedded_7742_firmware | No range specified | — |
| amd epyc_embedded_7702_firmware | No range specified | — |
| amd epyc_embedded_7662_firmware | No range specified | — |
| amd epyc_embedded_7642_firmware | No range specified | — |
| amd epyc_embedded_7552_firmware | No range specified | — |
| amd epyc_embedded_7542_firmware | No range specified | — |
| amd epyc_embedded_7532_firmware | No range specified | — |
| amd epyc_embedded_7502_firmware | No range specified | — |
| amd epyc_embedded_7452_firmware | No range specified | — |
| amd epyc_embedded_7f72_firmware | No range specified | — |
| amd epyc_embedded_7402_firmware | No range specified | — |
| amd epyc_embedded_7352_firmware | No range specified | — |
| amd epyc_embedded_7f52_firmware | No range specified | — |
| amd epyc_embedded_7302_firmware | No range specified | — |
| amd epyc_embedded_7282_firmware | No range specified | — |
| amd epyc_embedded_7272_firmware | No range specified | — |
| amd epyc_embedded_7f32_firmware | No range specified | — |
| amd epyc_embedded_7262_firmware | No range specified | — |
| amd epyc_embedded_7252_firmware | No range specified | — |
| amd epyc_embedded_7702p_firmware | No range specified | — |
| amd epyc_embedded_7502p_firmware | No range specified | — |
| amd epyc_embedded_7402p_firmware | No range specified | — |
| amd epyc_embedded_7302p_firmware | No range specified | — |
| amd epyc_embedded_7232p_firmware | No range specified | — |
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