Medium severity5.5NVD Advisory· Published Nov 16, 2021· Updated Jun 17, 2026

CVE-2021-26312

Description

Failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU) may lead an IO device to write to memory it should not be able to access, resulting in a potential loss of integrity.

Affected products

AMD/Ryzen™ Seriesv5
Range: various
AMD/Athlon™ Seriesv5
Range: various
osv-coords31 versions
pkg:rpm/suse/kernel-firmware&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209 pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4 pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3 pkg:rpm/opensuse/kernel-firmware&distro=openSUSE%20Leap%2015.4 pkg:rpm/suse/kernel-firmware&distro=SUSE%20Manager%20Proxy%204.1 pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOS pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSS pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSS pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1 pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2 pkg:rpm/suse/kernel-firmware&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.1 pkg:rpm/suse/kernel-firmware&distro=SUSE%20Manager%20Server%204.1 pkg:rpm/suse/kernel-firmware&distro=SUSE%20Enterprise%20Storage%206 pkg:rpm/suse/kernel-firmware&distro=SUSE%20Enterprise%20Storage%207 pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Micro%205.1 pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Micro%205.2 pkg:rpm/opensuse/kernel-firmware&distro=openSUSE%20Leap%2015.3 pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSS pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5 pkg:rpm/suse/kernel-firmware&distro=SUSE%20OpenStack%20Cloud%209 pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSS pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-ESPOS pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-BCL pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSS pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5 pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOS pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSS pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015 pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSS pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4 pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCL
< 20190618-5.25.2+ 30 more
- (no CPE)range: < 20190618-5.25.2
- (no CPE)range: < 20190618-5.25.2
- (no CPE)range: < 20210208-150300.4.10.1
- (no CPE)range: < 20220509-150400.4.5.1
- (no CPE)range: < 20200107-150100.3.31.1
- (no CPE)range: < 20200107-150100.3.31.1
- (no CPE)range: < 20200107-150100.3.31.1
- (no CPE)range: < 20200107-150100.3.31.1
- (no CPE)range: < 20200107-150100.3.31.1
- (no CPE)range: < 20200107-150100.3.31.1
- (no CPE)range: < 20200107-150100.3.31.1
- (no CPE)range: < 20200107-150100.3.31.1
- (no CPE)range: < 20200107-150100.3.31.1
- (no CPE)range: < 20200107-150100.3.31.1
- (no CPE)range: < 20210208-150300.4.10.1
- (no CPE)range: < 20210208-150300.4.10.1
- (no CPE)range: < 20210208-150300.4.10.1
- (no CPE)range: < 20190618-5.25.2
- (no CPE)range: < 20190618-5.25.2
- (no CPE)range: < 20190618-5.25.2
- (no CPE)range: < 20200107-150100.3.31.1
- (no CPE)range: < 20200107-150100.3.31.1
- (no CPE)range: < 20200107-150100.3.31.1
- (no CPE)range: < 20200107-150100.3.31.1
- (no CPE)range: < 20190618-5.25.2
- (no CPE)range: < 20191118-150000.3.42.1
- (no CPE)range: < 20191118-150000.3.42.1
- (no CPE)range: < 20191118-150000.3.42.1
- (no CPE)range: < 20191118-150000.3.42.1
- (no CPE)range: < 20220509-150400.4.5.1
- (no CPE)range: < 20200107-150100.3.31.1
AMD/Epyc 7601 Firmware
cpe:2.3:o:amd:epyc_7601_firmware:*:*:*:*:*:*:*:*
Range: <naplespi-sp3_1.0.0.g
AMD/Epyc 7551p Firmware
cpe:2.3:o:amd:epyc_7551p_firmware:*:*:*:*:*:*:*:*
Range: <naplespi-sp3_1.0.0.g
AMD/Epyc 7551 Firmware
cpe:2.3:o:amd:epyc_7551_firmware:*:*:*:*:*:*:*:*
Range: <naplespi-sp3_1.0.0.g
AMD/Epyc 7501 Firmware
cpe:2.3:o:amd:epyc_7501_firmware:*:*:*:*:*:*:*:*
Range: <naplespi-sp3_1.0.0.g
AMD/Epyc 7451 Firmware
cpe:2.3:o:amd:epyc_7451_firmware:*:*:*:*:*:*:*:*
Range: <naplespi-sp3_1.0.0.g
AMD/Epyc 7401 Firmware
cpe:2.3:o:amd:epyc_7401_firmware:*:*:*:*:*:*:*:*
Range: <naplespi-sp3_1.0.0.g
AMD/Epyc 7371 Firmware
cpe:2.3:o:amd:epyc_7371_firmware:*:*:*:*:*:*:*:*
Range: <naplespi-sp3_1.0.0.g
AMD/Epyc 7351p Firmware
cpe:2.3:o:amd:epyc_7351p_firmware:*:*:*:*:*:*:*:*
Range: <naplespi-sp3_1.0.0.g
AMD/Epyc 7351 Firmware
cpe:2.3:o:amd:epyc_7351_firmware:*:*:*:*:*:*:*:*
Range: <naplespi-sp3_1.0.0.g
AMD/Epyc 7301 Firmware
cpe:2.3:o:amd:epyc_7301_firmware:*:*:*:*:*:*:*:*
Range: <naplespi-sp3_1.0.0.g
AMD/Epyc 7281 Firmware
cpe:2.3:o:amd:epyc_7281_firmware:*:*:*:*:*:*:*:*
Range: <naplespi-sp3_1.0.0.g
AMD/Epyc 7261 Firmware
cpe:2.3:o:amd:epyc_7261_firmware:*:*:*:*:*:*:*:*
Range: <naplespi-sp3_1.0.0.g
AMD/Epyc 7251 Firmware
cpe:2.3:o:amd:epyc_7251_firmware:*:*:*:*:*:*:*:*
Range: <naplespi-sp3_1.0.0.g
AMD/Epyc 7f72 Firmware
cpe:2.3:o:amd:epyc_7f72_firmware:*:*:*:*:*:*:*:*
Range: <romepi-sp3_1.0.0.c
AMD/Epyc 7f52 Firmware
cpe:2.3:o:amd:epyc_7f52_firmware:*:*:*:*:*:*:*:*
Range: <romepi-sp3_1.0.0.c
AMD/Epyc 7f32 Firmware3 versions
cpe:2.3:o:amd:epyc_7f32_firmware:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:amd:epyc_7f32_firmware:*:*:*:*:*:*:*:*range: <romepi-sp3_1.0.0.c
- cpe:2.3:o:amd:epyc_7h12_firmware:*:*:*:*:*:*:*:*range: <romepi-sp3_1.0.0.c
- cpe:2.3:o:amd:epyc_7532_firmware:*:*:*:*:*:*:*:*range: <romepi-sp3_1.0.0.c
AMD/Epyc 7742 Firmware4 versions
cpe:2.3:o:amd:epyc_7742_firmware:*:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:o:amd:epyc_7742_firmware:*:*:*:*:*:*:*:*range: <romepi-sp3_1.0.0.c
- cpe:2.3:o:amd:epyc_7702p_firmware:*:*:*:*:*:*:*:*range: <romepi-sp3_1.0.0.c
- cpe:2.3:o:amd:epyc_7402p_firmware:*:*:*:*:*:*:*:*range: <romepi-sp3_1.0.0.c
- cpe:2.3:o:amd:epyc_7272_firmware:*:*:*:*:*:*:*:*range: <romepi-sp3_1.0.0.c
AMD/Epyc 7702 Firmware
cpe:2.3:o:amd:epyc_7702_firmware:*:*:*:*:*:*:*:*
Range: <romepi-sp3_1.0.0.c
AMD/Epyc 7662 Firmware
cpe:2.3:o:amd:epyc_7662_firmware:*:*:*:*:*:*:*:*
Range: <romepi-sp3_1.0.0.c
AMD/Epyc 7642 Firmware3 versions
cpe:2.3:o:amd:epyc_7642_firmware:*:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:amd:epyc_7642_firmware:*:*:*:*:*:*:*:*range: <romepi-sp3_1.0.0.c
- cpe:2.3:o:amd:epyc_7552_firmware:*:*:*:*:*:*:*:*range: <romepi-sp3_1.0.0.c
- cpe:2.3:o:amd:epyc_7232p_firmware:*:*:*:*:*:*:*:*range: <romepi-sp3_1.0.0.c
AMD/Epyc 7542 Firmware2 versions
cpe:2.3:o:amd:epyc_7542_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:amd:epyc_7542_firmware:*:*:*:*:*:*:*:*range: <romepi-sp3_1.0.0.c
- cpe:2.3:o:amd:epyc_7282_firmware:*:*:*:*:*:*:*:*range: <romepi-sp3_1.0.0.c
AMD/Epyc 7502 Firmware
cpe:2.3:o:amd:epyc_7502_firmware:*:*:*:*:*:*:*:*
Range: <romepi-sp3_1.0.0.c
AMD/Epyc 7302 Firmware2 versions
cpe:2.3:o:amd:epyc_7502p_firmware:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:amd:epyc_7502p_firmware:*:*:*:*:*:*:*:*range: <romepi-sp3_1.0.0.c
- cpe:2.3:o:amd:epyc_7302_firmware:*:*:*:*:*:*:*:*range: <romepi-sp3_1.0.0.c
AMD/Epyc 7452 Firmware
cpe:2.3:o:amd:epyc_7452_firmware:*:*:*:*:*:*:*:*
Range: <romepi-sp3_1.0.0.c
AMD/Epyc 7402 Firmware
cpe:2.3:o:amd:epyc_7402_firmware:*:*:*:*:*:*:*:*
Range: <romepi-sp3_1.0.0.c
AMD/Epyc 7352 Firmware
cpe:2.3:o:amd:epyc_7352_firmware:*:*:*:*:*:*:*:*
Range: <romepi-sp3_1.0.0.c
AMD/Epyc 7302p Firmware
cpe:2.3:o:amd:epyc_7302p_firmware:*:*:*:*:*:*:*:*
Range: <romepi-sp3_1.0.0.c
AMD/Epyc 7262 Firmware
cpe:2.3:o:amd:epyc_7262_firmware:*:*:*:*:*:*:*:*
Range: <romepi-sp3_1.0.0.c
AMD/Epyc 7252 Firmware
cpe:2.3:o:amd:epyc_7252_firmware:*:*:*:*:*:*:*:*
Range: <romepi-sp3_1.0.0.c
AMD/Epyc 7763 Firmware
cpe:2.3:o:amd:epyc_7763_firmware:*:*:*:*:*:*:*:*
Range: <milanpi-sp3_1.0.0.4
AMD/Epyc 7713p Firmware
cpe:2.3:o:amd:epyc_7713p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi-sp3_1.0.0.4
AMD/Epyc 7713 Firmware
cpe:2.3:o:amd:epyc_7713_firmware:*:*:*:*:*:*:*:*
Range: <milanpi-sp3_1.0.0.4
AMD/Epyc 7663 Firmware
cpe:2.3:o:amd:epyc_7663_firmware:*:*:*:*:*:*:*:*
Range: <milanpi-sp3_1.0.0.4
AMD/Epyc 7643 Firmware
cpe:2.3:o:amd:epyc_7643_firmware:*:*:*:*:*:*:*:*
Range: <milanpi-sp3_1.0.0.4
AMD/Epyc 75f3 Firmware
cpe:2.3:o:amd:epyc_75f3_firmware:*:*:*:*:*:*:*:*
Range: <milanpi-sp3_1.0.0.4
AMD/Epyc 7543p Firmware
cpe:2.3:o:amd:epyc_7543p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi-sp3_1.0.0.4
AMD/Epyc 7543 Firmware
cpe:2.3:o:amd:epyc_7543_firmware:*:*:*:*:*:*:*:*
Range: <milanpi-sp3_1.0.0.4
AMD/Epyc 7513 Firmware
cpe:2.3:o:amd:epyc_7513_firmware:*:*:*:*:*:*:*:*
Range: <milanpi-sp3_1.0.0.4
AMD/Epyc 7453 Firmware
cpe:2.3:o:amd:epyc_7453_firmware:*:*:*:*:*:*:*:*
Range: <milanpi-sp3_1.0.0.4
AMD/Epyc 74f3 Firmware
cpe:2.3:o:amd:epyc_74f3_firmware:*:*:*:*:*:*:*:*
Range: <milanpi-sp3_1.0.0.4
AMD/Epyc 7443p Firmware
cpe:2.3:o:amd:epyc_7443p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi-sp3_1.0.0.4
AMD/Epyc 7443 Firmware
cpe:2.3:o:amd:epyc_7443_firmware:*:*:*:*:*:*:*:*
Range: <milanpi-sp3_1.0.0.4
AMD/Epyc 7413 Firmware
cpe:2.3:o:amd:epyc_7413_firmware:*:*:*:*:*:*:*:*
Range: <milanpi-sp3_1.0.0.4
AMD/Epyc 73f3 Firmware
cpe:2.3:o:amd:epyc_73f3_firmware:*:*:*:*:*:*:*:*
Range: <milanpi-sp3_1.0.0.4
AMD/Epyc 7343 Firmware
cpe:2.3:o:amd:epyc_7343_firmware:*:*:*:*:*:*:*:*
Range: <milanpi-sp3_1.0.0.4
AMD/Epyc 7313p Firmware
cpe:2.3:o:amd:epyc_7313p_firmware:*:*:*:*:*:*:*:*
Range: <milanpi-sp3_1.0.0.4
AMD/Epyc 7313 Firmware
cpe:2.3:o:amd:epyc_7313_firmware:*:*:*:*:*:*:*:*
Range: <milanpi-sp3_1.0.0.4
AMD/Epyc 72f3 Firmware
cpe:2.3:o:amd:epyc_72f3_firmware:*:*:*:*:*:*:*:*
Range: <milanpi-sp3_1.0.0.4
AMD/IOMMUllm-fuzzy
AMD/AMD processorscpe-rescue
Range: various

cvss	0.358
epss	0.000
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000

CVE-2021-26312

Description

Affected products

Patches

Vulnerability mechanics

References

News mentions