Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.

CVE-2021-26342 Details

Description

In SEV guest VMs, the CPU may fail to flush the Translation Lookaside Buffer (TLB) following a particular sequence of operations that includes creation of a new virtual machine control block (VMCB). The failure to flush the TLB may cause the microcode to use stale TLB translations which may allow for disclosure of SEV guest memory contents. Users of SEV-ES/SEV-SNP guest VMs are not impacted by this vulnerability.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:3.3 LOWVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1028	CVE	Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1028	[email protected]	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
NVD-CWE-noinfo	Insufficient Information to Classify Weakness	[email protected]

Affected Products

Product	Versions
amd epyc 7763 firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_7763_firmware:::::::: Remediation No remediation found in references.
amd epyc 7763	All versions
CPE cpe:2.3:h:amd:epyc_7763:-:::::::* Remediation No remediation found in references.
amd epyc 7713p firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_7713p_firmware:::::::: Remediation No remediation found in references.
amd epyc 7713p	All versions
CPE cpe:2.3:h:amd:epyc_7713p:-:::::::* Remediation No remediation found in references.
amd epyc 7713 firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_7713_firmware:::::::: Remediation No remediation found in references.
amd epyc 7713	All versions
CPE cpe:2.3:h:amd:epyc_7713:-:::::::* Remediation No remediation found in references.
amd epyc 7663 firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_7663_firmware:::::::: Remediation No remediation found in references.
amd epyc 7663	All versions
CPE cpe:2.3:h:amd:epyc_7663:-:::::::* Remediation No remediation found in references.
amd epyc 7643 firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_7643_firmware:::::::: Remediation No remediation found in references.
amd epyc 7643	All versions
CPE cpe:2.3:h:amd:epyc_7643:-:::::::* Remediation No remediation found in references.
amd epyc 75f3 firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_75f3_firmware:::::::: Remediation No remediation found in references.
amd epyc 75f3	All versions
CPE cpe:2.3:h:amd:epyc_75f3:-:::::::* Remediation No remediation found in references.
amd epyc 7543p firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_7543p_firmware:::::::: Remediation No remediation found in references.
amd epyc 7543p	All versions
CPE cpe:2.3:h:amd:epyc_7543p:-:::::::* Remediation No remediation found in references.
amd epyc 7543 firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_7543_firmware:::::::: Remediation No remediation found in references.
amd epyc 7543	All versions
CPE cpe:2.3:h:amd:epyc_7543:-:::::::* Remediation No remediation found in references.
amd epyc 7513 firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_7513_firmware:::::::: Remediation No remediation found in references.
amd epyc 7513	All versions
CPE cpe:2.3:h:amd:epyc_7513:-:::::::* Remediation No remediation found in references.
amd epyc 7453 firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_7453_firmware:::::::: Remediation No remediation found in references.
amd epyc 7453	All versions
CPE cpe:2.3:h:amd:epyc_7453:-:::::::* Remediation No remediation found in references.
amd epyc 74f3 firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_74f3_firmware:::::::: Remediation No remediation found in references.
amd epyc 74f3	All versions
CPE cpe:2.3:h:amd:epyc_74f3:-:::::::* Remediation No remediation found in references.
amd epyc 7443p firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_7443p_firmware:::::::: Remediation No remediation found in references.
amd epyc 7443p	All versions
CPE cpe:2.3:h:amd:epyc_7443p:-:::::::* Remediation No remediation found in references.
amd epyc 7443 firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_7443_firmware:::::::: Remediation No remediation found in references.
amd epyc 7443	All versions
CPE cpe:2.3:h:amd:epyc_7443:-:::::::* Remediation No remediation found in references.
amd epyc 7413 firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_7413_firmware:::::::: Remediation No remediation found in references.
amd epyc 7413	All versions
CPE cpe:2.3:h:amd:epyc_7413:-:::::::* Remediation No remediation found in references.
amd epyc 73f3 firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_73f3_firmware:::::::: Remediation No remediation found in references.
amd epyc 73f3	All versions
CPE cpe:2.3:h:amd:epyc_73f3:-:::::::* Remediation No remediation found in references.
amd epyc 7343 firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_7343_firmware:::::::: Remediation No remediation found in references.
amd epyc 7343	All versions
CPE cpe:2.3:h:amd:epyc_7343:-:::::::* Remediation No remediation found in references.
amd epyc 7313p firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_7313p_firmware:::::::: Remediation No remediation found in references.
amd epyc 7313p	All versions
CPE cpe:2.3:h:amd:epyc_7313p:-:::::::* Remediation No remediation found in references.
amd epyc 7313 firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_7313_firmware:::::::: Remediation No remediation found in references.
amd epyc 7313	All versions
CPE cpe:2.3:h:amd:epyc_7313:-:::::::* Remediation No remediation found in references.
amd epyc 72f3 firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_72f3_firmware:::::::: Remediation No remediation found in references.
amd epyc 72f3	All versions
CPE cpe:2.3:h:amd:epyc_72f3:-:::::::* Remediation No remediation found in references.
amd epyc 7773x firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_7773x_firmware:::::::: Remediation No remediation found in references.
amd epyc 7773x	All versions
CPE cpe:2.3:h:amd:epyc_7773x:-:::::::* Remediation No remediation found in references.
amd epyc 7473x firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_7473x_firmware:::::::: Remediation No remediation found in references.
amd epyc 7473x	All versions
CPE cpe:2.3:h:amd:epyc_7473x:-:::::::* Remediation No remediation found in references.
amd epyc 7573x firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_7573x_firmware:::::::: Remediation No remediation found in references.
amd epyc 7573x	All versions
CPE cpe:2.3:h:amd:epyc_7573x:-:::::::* Remediation No remediation found in references.
amd epyc 7373x firmware	< milanpi-sp3_1.0.0.7
CPE cpe:2.3:o:amd:epyc_7373x_firmware:::::::: Remediation No remediation found in references.
amd epyc 7373x	All versions
CPE cpe:2.3:h:amd:epyc_7373x:-:::::::* Remediation No remediation found in references.
amd epyc 7001 firmware	< naplespi-sp3_1.0.0.h
CPE cpe:2.3:o:amd:epyc_7001_firmware:::::::: Remediation No remediation found in references.
amd epyc 7001	All versions
CPE cpe:2.3:h:amd:epyc_7001:-:::::::* Remediation No remediation found in references.
amd epyc 7251 firmware	< naplespi-sp3_1.0.0.h
CPE cpe:2.3:o:amd:epyc_7251_firmware:::::::: Remediation No remediation found in references.
amd epyc 7251	All versions
CPE cpe:2.3:h:amd:epyc_7251:-:::::::* Remediation No remediation found in references.
amd epyc 7261 firmware	< naplespi-sp3_1.0.0.h
CPE cpe:2.3:o:amd:epyc_7261_firmware:::::::: Remediation No remediation found in references.
amd epyc 7261	All versions
CPE cpe:2.3:h:amd:epyc_7261:-:::::::* Remediation No remediation found in references.
amd epyc 7281 firmware	< naplespi-sp3_1.0.0.h
CPE cpe:2.3:o:amd:epyc_7281_firmware:::::::: Remediation No remediation found in references.
amd epyc 7281	All versions
CPE cpe:2.3:h:amd:epyc_7281:-:::::::* Remediation No remediation found in references.
amd epyc 7301 firmware	< naplespi-sp3_1.0.0.h
CPE cpe:2.3:o:amd:epyc_7301_firmware:::::::: Remediation No remediation found in references.
amd epyc 7301	All versions
CPE cpe:2.3:h:amd:epyc_7301:-:::::::* Remediation No remediation found in references.
amd epyc 7351 firmware	< naplespi-sp3_1.0.0.h
CPE cpe:2.3:o:amd:epyc_7351_firmware:::::::: Remediation No remediation found in references.
amd epyc 7351	All versions
CPE cpe:2.3:h:amd:epyc_7351:-:::::::* Remediation No remediation found in references.
amd epyc 7351p firmware	< naplespi-sp3_1.0.0.h
CPE cpe:2.3:o:amd:epyc_7351p_firmware:::::::: Remediation No remediation found in references.
amd epyc 7351p	All versions
CPE cpe:2.3:h:amd:epyc_7351p:-:::::::* Remediation No remediation found in references.
amd epyc 7371 firmware	< naplespi-sp3_1.0.0.h
CPE cpe:2.3:o:amd:epyc_7371_firmware:::::::: Remediation No remediation found in references.
amd epyc 7371	All versions
CPE cpe:2.3:h:amd:epyc_7371:-:::::::* Remediation No remediation found in references.
amd epyc 7401 firmware	< naplespi-sp3_1.0.0.h
CPE cpe:2.3:o:amd:epyc_7401_firmware:::::::: Remediation No remediation found in references.
amd epyc 7401	All versions
CPE cpe:2.3:h:amd:epyc_7401:-:::::::* Remediation No remediation found in references.
amd epyc 7401p firmware	< naplespi-sp3_1.0.0.h
CPE cpe:2.3:o:amd:epyc_7401p_firmware:::::::: Remediation No remediation found in references.
amd epyc 7401p	All versions
CPE cpe:2.3:h:amd:epyc_7401p:-:::::::* Remediation No remediation found in references.
amd epyc 7451 firmware	< naplespi-sp3_1.0.0.h
CPE cpe:2.3:o:amd:epyc_7451_firmware:::::::: Remediation No remediation found in references.
amd epyc 7451	All versions
CPE cpe:2.3:h:amd:epyc_7451:-:::::::* Remediation No remediation found in references.
amd epyc 7501 firmware	< naplespi-sp3_1.0.0.h
CPE cpe:2.3:o:amd:epyc_7501_firmware:::::::: Remediation No remediation found in references.
amd epyc 7501	All versions
CPE cpe:2.3:h:amd:epyc_7501:-:::::::* Remediation No remediation found in references.
amd epyc 7551 firmware	< naplespi-sp3_1.0.0.h
CPE cpe:2.3:o:amd:epyc_7551_firmware:::::::: Remediation No remediation found in references.
amd epyc 7551	All versions
CPE cpe:2.3:h:amd:epyc_7551:-:::::::* Remediation No remediation found in references.
amd epyc 7551p firmware	< naplespi-sp3_1.0.0.h
CPE cpe:2.3:o:amd:epyc_7551p_firmware:::::::: Remediation No remediation found in references.
amd epyc 7551p	All versions
CPE cpe:2.3:h:amd:epyc_7551p:-:::::::* Remediation No remediation found in references.
amd epyc 7601 firmware	< naplespi-sp3_1.0.0.h
CPE cpe:2.3:o:amd:epyc_7601_firmware:::::::: Remediation No remediation found in references.
amd epyc 7601	All versions
CPE cpe:2.3:h:amd:epyc_7601:-:::::::* Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
May 19, 2022	Initial Analysis	[email protected]

CVE-2021-26342 Details

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Affected Products

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation

CPE

Remediation