Medium severity6.5NVD Advisory· Published May 11, 2022· Updated Jun 17, 2026
CVE-2021-46744
CVE-2021-46744
Description
An attacker with access to a malicious hypervisor may be able to infer data values used in a SEV guest on AMD CPUs by monitoring ciphertext values over time.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
167- Range: Processor EPYC
- osv-coords66 versionspkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Micro%205.1pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP4pkg:rpm/opensuse/kernel-firmware&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/kernel-firmware-amdgpu&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-ath10k&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-atheros&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-bluetooth&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-brcm&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-chelsio&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-dpaa2&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-iwlwifi&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-media&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-mediatek&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-mellanox&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-nfp&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-nvidia&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-platform&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-prestera&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-qcom&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-qlogic&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-radeon&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-realtek&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-sound&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-ti&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-ueagle&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-usb-network&distro=openSUSE%20Tumbleweedpkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-LTSSpkg:rpm/suse/kernel-firmware&distro=SUSE%20Manager%20Server%204.1pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-LTSSpkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP2pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%2015-LTSSpkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Basesystem%2015%20SP3pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Micro%205.2pkg:rpm/opensuse/kernel-firmware&distro=openSUSE%20Leap%2015.3pkg:rpm/opensuse/kernel-firmware-intel&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-mwifiex&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-ath11k&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-ath12k&distro=openSUSE%20Tumbleweedpkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP1-BCLpkg:rpm/suse/kernel-firmware&distro=SUSE%20Enterprise%20Storage%206pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-ESPOSpkg:rpm/opensuse/kernel-firmware-marvell&distro=openSUSE%20Tumbleweedpkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-LTSSpkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-ESPOSpkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP1-LTSSpkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015%20SP2-ESPOSpkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%2015%20SP2-BCLpkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015%20SP1pkg:rpm/suse/kernel-firmware&distro=SUSE%20Manager%20Retail%20Branch%20Server%204.1pkg:rpm/suse/kernel-firmware&distro=SUSE%20Enterprise%20Storage%207pkg:rpm/suse/kernel-firmware&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/kernel-firmware&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209pkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20High%20Performance%20Computing%2015-LTSSpkg:rpm/suse/kernel-firmware&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2015pkg:rpm/suse/kernel-firmware&distro=SUSE%20Manager%20Proxy%204.1pkg:rpm/opensuse/kernel-firmware-bnx2&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-liquidio&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-all&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-i915&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-network&distro=openSUSE%20Tumbleweedpkg:rpm/opensuse/kernel-firmware-serial&distro=openSUSE%20Tumbleweed
< 20210208-150300.4.10.1+ 65 more
- (no CPE)range: < 20210208-150300.4.10.1
- (no CPE)range: < 20220509-150400.4.5.1
- (no CPE)range: < 20220509-150400.4.5.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250208-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250210-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (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: < 20200107-150100.3.31.1
- (no CPE)range: < 20200107-150100.3.31.1
- (no CPE)range: < 20190618-5.25.2
- (no CPE)range: < 20190618-5.25.2
- (no CPE)range: < 20191118-150000.3.42.1
- (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: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20200107-150100.3.31.1
- (no CPE)range: < 20200107-150100.3.31.1
- (no CPE)range: < 20191118-150000.3.42.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20200107-150100.3.31.1
- (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: < 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: < 20190618-5.25.2
- (no CPE)range: < 20191118-150000.3.42.1
- (no CPE)range: < 20191118-150000.3.42.1
- (no CPE)range: < 20200107-150100.3.31.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20220516-1.1
- (no CPE)range: < 20250210-1.1
- (no CPE)range: < 20250206-1.1
- (no CPE)range: < 20250206-1.1
- cpe:2.3:o:amd:epyc_7001_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7002_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7003_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7232p_firmware:-:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:amd:epyc_7232p_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7552_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7642_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7251_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7252_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7261_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7262_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7272_firmware:-:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:o:amd:epyc_7272_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7402p_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7702p_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7742_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7281_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7282_firmware:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:amd:epyc_7282_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7542_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7301_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_7302_firmware:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:amd:epyc_7302_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7502p_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7302p_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7313_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7313p_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7343_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7351_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7351p_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7352_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7371_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7401_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7401p_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7402_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7413_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7443_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7443p_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7451_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7452_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7453_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7501_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7502_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7513_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7532_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7543_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7543p_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7551_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7551p_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7601_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7643_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7662_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7663_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7702_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7713_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7713p_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_7763_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_3101_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_embedded_3151_firmware:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:amd:epyc_embedded_3151_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_3255_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_embedded_3201_firmware:-:*:*:*:*:*:*:*+ 3 more
- cpe:2.3:o:amd:epyc_embedded_3201_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7451_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7501_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7551_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_embedded_3251_firmware:-:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:o:amd:epyc_embedded_3251_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7281_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_755p_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_3351_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_3451_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7232p_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7251_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7252_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7261_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7262_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7272_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7282_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7301_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7302_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7302p_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7351_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7352_firmware:-:*:*:*:*:*:*:*
cpe:2.3:o:amd:epyc_embedded_735p_firmware:-:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:o:amd:epyc_embedded_735p_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7601_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7371_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7401_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7402_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7402p_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_740p_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7452_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7502_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7502p_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7532_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7542_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7552_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7642_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7662_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7702_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7702p_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7742_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7f32_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7f52_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7f72_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:amd:epyc_embedded_7h12_firmware:-:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
2- www.openwall.com/lists/oss-security/2022/08/08/6nvdMailing ListThird Party Advisory
- www.amd.com/en/corporate/product-security/bulletin/amd-sb-1033nvdVendor Advisory
News mentions
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