01 Record
CVE-2021-26341
Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage.
UnratedPUBLISHEDCNA: AMD
CNA base scoreUnratedNo CNA CVSS vector
02 Description
Some AMD CPUs may transiently execute beyond unconditional direct branches, which may potentially result in data leakage.
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 0.31% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 24.6% of scored records. A rank, not a probability.
- NVD base score
- 6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2022-03-11 17:54Z4 YR AGO
- Last updated
- 2024-09-16 20:16Z2 YR AGO
- Reserved
- 2021-01-29
- Assigning CNA
- AMD
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- dad48fa7fbd1f5285fb9504f3c65ae29554cbc64b04103d09c2bc5a6e108c7b3
05 Affected products
VendorProductVersionsPlatforms
06 References
- www.amd.comhttps://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1026
- www.openwall.com[oss-security] 20220318 Xen Security Advisory 398 v2 - Multiple speculative security issueshttp://www.openwall.com/lists/oss-security/2022/03/18/2
07 Fixed in
AlmaLinux 8
- bpftool Fixed in 4.18.0-477.10.1.el8_8
- kernel Fixed in 4.18.0-477.10.1.el8_8
- kernel-abi-stablelists Fixed in 4.18.0-477.10.1.el8_8
- kernel-core Fixed in 4.18.0-477.10.1.el8_8
- kernel-cross-headers Fixed in 4.18.0-477.10.1.el8_8
- kernel-debug Fixed in 4.18.0-477.10.1.el8_8
- kernel-debug-core Fixed in 4.18.0-477.10.1.el8_8
- kernel-debug-devel Fixed in 4.18.0-477.10.1.el8_8
- kernel-debug-modules Fixed in 4.18.0-477.10.1.el8_8
- kernel-debug-modules-extra Fixed in 4.18.0-477.10.1.el8_8
- kernel-devel Fixed in 4.18.0-477.10.1.el8_8
- kernel-doc Fixed in 4.18.0-477.10.1.el8_8
- kernel-modules Fixed in 4.18.0-477.10.1.el8_8
- kernel-modules-extra Fixed in 4.18.0-477.10.1.el8_8
- kernel-rt Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-rt-core Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-rt-debug Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-rt-debug-core Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-rt-debug-devel Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-rt-debug-kvm Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-rt-debug-modules Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-rt-debug-modules-extra Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-rt-devel Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-rt-kvm Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-rt-modules Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-rt-modules-extra Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-tools Fixed in 4.18.0-477.10.1.el8_8
- kernel-tools-libs Fixed in 4.18.0-477.10.1.el8_8
- kernel-tools-libs-devel Fixed in 4.18.0-477.10.1.el8_8
- kernel-zfcpdump Fixed in 4.18.0-477.10.1.el8_8
- kernel-zfcpdump-core Fixed in 4.18.0-477.10.1.el8_8
- kernel-zfcpdump-devel Fixed in 4.18.0-477.10.1.el8_8
- kernel-zfcpdump-modules Fixed in 4.18.0-477.10.1.el8_8
- kernel-zfcpdump-modules-extra Fixed in 4.18.0-477.10.1.el8_8
- perf Fixed in 4.18.0-477.10.1.el8_8
- python3-perf Fixed in 4.18.0-477.10.1.el8_8
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- bpftool Fixed in 7.0.0-284.11.1.el9_2
- kernel Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-devel Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-devel-matched Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-modules Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-modules-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-modules-extra Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-devel Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-devel-matched Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-modules Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-modules-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-modules-extra Fixed in 5.14.0-284.11.1.el9_2
- kernel-abi-stablelists Fixed in 5.14.0-284.11.1.el9_2
- kernel-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-cross-headers Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-devel Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-devel-matched Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-modules Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-modules-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-modules-extra Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-uki-virt Fixed in 5.14.0-284.11.1.el9_2
- kernel-devel Fixed in 5.14.0-284.11.1.el9_2
- kernel-devel-matched Fixed in 5.14.0-284.11.1.el9_2
- kernel-doc Fixed in 5.14.0-284.11.1.el9_2
- kernel-modules Fixed in 5.14.0-284.11.1.el9_2
- kernel-modules-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-modules-extra Fixed in 5.14.0-284.11.1.el9_2
- kernel-rt Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-core Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-debug Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-debug-core Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-debug-devel Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-debug-kvm Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-debug-modules Fixed in 5.14.0-284.11.1.rt14.296.el9_2
21 further packages in AlmaLinux 9 not shown (first 40 listed).
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- bpftool Fixed in 4.18.0-477.10.1.el8_8
- kernel Fixed in 4.18.0-477.10.1.el8_8
- kernel-abi-stablelists Fixed in 4.18.0-477.10.1.el8_8
- kernel-core Fixed in 4.18.0-477.10.1.el8_8
- kernel-cross-headers Fixed in 4.18.0-477.10.1.el8_8
- kernel-debug Fixed in 4.18.0-477.10.1.el8_8
- kernel-debug-core Fixed in 4.18.0-477.10.1.el8_8
- kernel-debug-devel Fixed in 4.18.0-477.10.1.el8_8
- kernel-debug-modules Fixed in 4.18.0-477.10.1.el8_8
- kernel-debug-modules-extra Fixed in 4.18.0-477.10.1.el8_8
- kernel-devel Fixed in 4.18.0-477.10.1.el8_8
- kernel-doc Fixed in 4.18.0-477.10.1.el8_8
- kernel-modules Fixed in 4.18.0-477.10.1.el8_8
- kernel-modules-extra Fixed in 4.18.0-477.10.1.el8_8
- kernel-rt Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-rt-core Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-rt-debug Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-rt-debug-core Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-rt-debug-devel Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-rt-debug-kvm Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-rt-debug-modules Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-rt-debug-modules-extra Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-rt-devel Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-rt-kvm Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-rt-modules Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-rt-modules-extra Fixed in 4.18.0-477.10.1.rt7.274.el8_8
- kernel-tools Fixed in 4.18.0-477.10.1.el8_8
- kernel-tools-libs Fixed in 4.18.0-477.10.1.el8_8
- kernel-tools-libs-devel Fixed in 4.18.0-477.10.1.el8_8
- kernel-zfcpdump Fixed in 4.18.0-477.10.1.el8_8
- kernel-zfcpdump-core Fixed in 4.18.0-477.10.1.el8_8
- kernel-zfcpdump-devel Fixed in 4.18.0-477.10.1.el8_8
- kernel-zfcpdump-modules Fixed in 4.18.0-477.10.1.el8_8
- kernel-zfcpdump-modules-extra Fixed in 4.18.0-477.10.1.el8_8
- perf Fixed in 4.18.0-477.10.1.el8_8
- python3-perf Fixed in 4.18.0-477.10.1.el8_8
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- bpftool Fixed in 7.0.0-284.11.1.el9_2
- kernel Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-devel Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-devel-matched Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-modules Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-modules-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-debug-modules-extra Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-devel Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-devel-matched Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-modules Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-modules-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-64k-modules-extra Fixed in 5.14.0-284.11.1.el9_2
- kernel-abi-stablelists Fixed in 5.14.0-284.11.1.el9_2
- kernel-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-cross-headers Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-devel Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-devel-matched Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-modules Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-modules-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-modules-extra Fixed in 5.14.0-284.11.1.el9_2
- kernel-debug-uki-virt Fixed in 5.14.0-284.11.1.el9_2
- kernel-devel Fixed in 5.14.0-284.11.1.el9_2
- kernel-devel-matched Fixed in 5.14.0-284.11.1.el9_2
- kernel-doc Fixed in 5.14.0-284.11.1.el9_2
- kernel-modules Fixed in 5.14.0-284.11.1.el9_2
- kernel-modules-core Fixed in 5.14.0-284.11.1.el9_2
- kernel-modules-extra Fixed in 5.14.0-284.11.1.el9_2
- kernel-rt Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-core Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-debug Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-debug-core Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-debug-devel Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-debug-kvm Fixed in 5.14.0-284.11.1.rt14.296.el9_2
- kernel-rt-debug-modules Fixed in 5.14.0-284.11.1.rt14.296.el9_2
21 further packages in CloudLinux 9 not shown (first 40 listed).
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.