CVE-2021-43976
In the Linux kernel through 5.15.2, mwifiex_usb_recv in drivers/net/wireless/marvell/mwifiex/usb.c allows an attacker (who can connect a crafted USB device) to cause a denial of service
02 Description
In the Linux kernel through 5.15.2, mwifiex_usb_recv in drivers/net/wireless/marvell/mwifiex/usb.c allows an attacker (who can connect a crafted USB device) to cause a denial of service
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
- 0.69% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 52.3% of scored records. A rank, not a probability.
- NVD base score
- 4.6 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- 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
- 2021-11-17 00:00Z4 YR AGO
- Last updated
- 2024-08-04 04:10Z2 YR AGO
- Reserved
- 2021-11-17
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-459Incomplete CleanupBase
- Data version
- 5.1
- Document digest
- 53b7de37634dd2a273b6da6d7d20c8d5827d963cd7c2ba69cd2f6c5078f7f0ef
05 Affected products
06 References
- patchwork.kernel.orghttps://patchwork.kernel.org/project/linux-wireless/patch/YX4CqjfRcTa6bVL+%40Zekuns-MBP-16.fios-router.home/
- lists.fedoraproject.orgFEDORA-2021-eab8c5a263https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/X24M7KDC4OJOZNS3RDSYC7ELNELOLQ2N/
- lists.fedoraproject.orgFEDORA-2021-c09b851eb0https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YODMYMGZYDXQKGJGX7TJG4XV4L5YLLBD/
- www.debian.orgDSA-5092https://www.debian.org/security/2022/dsa-5092
- lists.debian.org[debian-lts-announce] 20220309 [SECURITY] [DLA 2940-1] linux security updatehttps://lists.debian.org/debian-lts-announce/2022/03/msg00011.html
- lists.debian.org[debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security updatehttps://lists.debian.org/debian-lts-announce/2022/03/msg00012.html
- www.debian.orgDSA-5096https://www.debian.org/security/2022/dsa-5096
- www.oracle.comhttps://www.oracle.com/security-alerts/cpujul2022.html
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20211210-0001/
- git.kernel.orghttps://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=04d80663f67ccef893061b49ec8a42ff7045ae84
07 Fixed in
AlmaLinux 8
- bpftool Fixed in 4.18.0-372.9.1.el8
- kernel Fixed in 4.18.0-372.9.1.el8
- kernel-abi-stablelists Fixed in 4.18.0-372.9.1.el8
- kernel-core Fixed in 4.18.0-372.9.1.el8
- kernel-cross-headers Fixed in 4.18.0-372.9.1.el8
- kernel-debug Fixed in 4.18.0-372.9.1.el8
- kernel-debug-core Fixed in 4.18.0-372.9.1.el8
- kernel-debug-devel Fixed in 4.18.0-372.9.1.el8
- kernel-debug-modules Fixed in 4.18.0-372.9.1.el8
- kernel-debug-modules-extra Fixed in 4.18.0-372.9.1.el8
- kernel-devel Fixed in 4.18.0-372.9.1.el8
- kernel-doc Fixed in 4.18.0-372.9.1.el8
- kernel-headers Fixed in 4.18.0-372.9.1.el8
- kernel-modules Fixed in 4.18.0-372.9.1.el8
- kernel-modules-extra Fixed in 4.18.0-372.9.1.el8
- kernel-tools Fixed in 4.18.0-372.9.1.el8
- kernel-tools-libs Fixed in 4.18.0-372.9.1.el8
- kernel-tools-libs-devel Fixed in 4.18.0-372.9.1.el8
- perf Fixed in 4.18.0-372.9.1.el8
- python3-perf Fixed in 4.18.0-372.9.1.el8
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Arch Linux
- linux No fix yet
- linux-hardened No fix yet
- linux-lts Fixed in 5.15.2-1
- linux-zen No fix yet
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
CloudLinux 8
- bpftool Fixed in 4.18.0-372.9.1.el8
- kernel Fixed in 4.18.0-372.9.1.el8
- kernel-abi-stablelists Fixed in 4.18.0-372.9.1.el8
- kernel-core Fixed in 4.18.0-372.9.1.el8
- kernel-cross-headers Fixed in 4.18.0-372.9.1.el8
- kernel-debug Fixed in 4.18.0-372.9.1.el8
- kernel-debug-core Fixed in 4.18.0-372.9.1.el8
- kernel-debug-devel Fixed in 4.18.0-372.9.1.el8
- kernel-debug-modules Fixed in 4.18.0-372.9.1.el8
- kernel-debug-modules-extra Fixed in 4.18.0-372.9.1.el8
- kernel-devel Fixed in 4.18.0-372.9.1.el8
- kernel-doc Fixed in 4.18.0-372.9.1.el8
- kernel-headers Fixed in 4.18.0-372.9.1.el8
- kernel-modules Fixed in 4.18.0-372.9.1.el8
- kernel-modules-extra Fixed in 4.18.0-372.9.1.el8
- kernel-tools Fixed in 4.18.0-372.9.1.el8
- kernel-tools-libs Fixed in 4.18.0-372.9.1.el8
- kernel-tools-libs-devel Fixed in 4.18.0-372.9.1.el8
- perf Fixed in 4.18.0-372.9.1.el8
- python3-perf Fixed in 4.18.0-372.9.1.el8
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.
Debian 12
- linux Fixed in 5.15.15-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 5.15.15-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 5.15.15-2
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux-hwe-edge No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- linux Fixed in 4.15.0-173.182
- linux-aws Fixed in 4.15.0-1124.133
- linux-aws-5.0 No fix yet
- linux-aws-5.3 No fix yet
- linux-aws-5.4 Fixed in 5.4.0-1069.73~18.04.1
- linux-azure No fix yet
- linux-azure-4.15 Fixed in 4.15.0-1134.147
- linux-azure-5.3 No fix yet
- linux-azure-5.4 Fixed in 5.4.0-1073.76~18.04.1
- linux-azure-edge No fix yet
- linux-dell300x Fixed in 4.15.0-1038.43
- linux-gcp No fix yet
- linux-gcp-4.15 Fixed in 4.15.0-1119.133
- linux-gcp-5.3 No fix yet
- linux-gcp-5.4 Fixed in 5.4.0-1068.72~18.04.1
- linux-gke-4.15 No fix yet
- linux-gke-5.4 Fixed in 5.4.0-1066.69~18.04.1
- linux-gkeop-5.4 Fixed in 5.4.0-1037.38~18.04.1
- linux-hwe No fix yet
- linux-hwe-5.4 Fixed in 5.4.0-105.119~18.04.1
- linux-hwe-edge No fix yet
- linux-ibm-5.4 Fixed in 5.4.0-1018.20~18.04.1
- linux-kvm Fixed in 4.15.0-1110.113
- linux-oem No fix yet
- linux-oracle Fixed in 4.15.0-1090.99
- linux-oracle-5.0 No fix yet
- linux-oracle-5.3 No fix yet
- linux-oracle-5.4 Fixed in 5.4.0-1067.72~18.04.1
- linux-raspi-5.4 Fixed in 5.4.0-1056.63~18.04.1
- linux-raspi2 Fixed in 4.15.0-1106.113
- linux-snapdragon Fixed in 4.15.0-1123.132
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- linux Fixed in 5.4.0-105.119
- linux-aws Fixed in 5.4.0-1069.73
- linux-aws-5.11 No fix yet
- linux-aws-5.13 Fixed in 5.13.0-1022.24~20.04.1
- linux-aws-5.8 No fix yet
- linux-azure Fixed in 5.4.0-1073.76
- linux-azure-5.11 No fix yet
- linux-azure-5.13 Fixed in 5.13.0-1022.26~20.04.1
- linux-azure-5.8 No fix yet
- linux-bluefield Fixed in 5.4.0-1032.35
- linux-gcp Fixed in 5.4.0-1068.72
- linux-gcp-5.11 No fix yet
- linux-gcp-5.13 Fixed in 5.13.0-1024.29~20.04.1
- linux-gcp-5.8 No fix yet
- linux-gke Fixed in 5.4.0-1066.69
- linux-gkeop Fixed in 5.4.0-1037.38
- linux-hwe-5.11 No fix yet
- linux-hwe-5.13 Fixed in 5.13.0-40.45~20.04.1
- linux-hwe-5.8 No fix yet
- linux-ibm Fixed in 5.4.0-1018.20
- linux-intel-5.13 Fixed in 5.13.0-1011.11
- linux-kvm Fixed in 5.4.0-1059.62
- linux-oem-5.10 No fix yet
- linux-oem-5.13 No fix yet
- linux-oem-5.14 Fixed in 5.14.0-1024.26
- linux-oem-5.6 No fix yet
- linux-oracle Fixed in 5.4.0-1067.72
- linux-oracle-5.11 No fix yet
- linux-oracle-5.13 Fixed in 5.13.0-1027.32~20.04.1
- linux-oracle-5.8 No fix yet
- linux-raspi Fixed in 5.4.0-1056.63
- linux-raspi2 No fix yet
- linux-riscv No fix yet
- linux-riscv-5.11 No fix yet
- linux-riscv-5.8 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- linux-intel-iot-realtime No fix yet
- linux-realtime No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- linux-raspi-realtime No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- linux No fix yet
- linux-aws Fixed in 4.4.0-1103.108Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure Fixed in 4.15.0-1134.147~14.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-lts-xenial Fixed in 4.4.0-223.256~14.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- linux Fixed in 4.4.0-223.256Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-aws Fixed in 4.4.0-1139.153Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-aws-hwe Fixed in 4.15.0-1124.133~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-azure Fixed in 4.15.0-1134.147~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-gcp Fixed in 4.15.0-1119.133~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-hwe Fixed in 4.15.0-173.182~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-kvm Fixed in 4.4.0-1104.113Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
- linux-oracle Fixed in 4.15.0-1090.99~16.04.1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 16.04 LTS
- linux-fips Fixed in 4.4.0-1073.79Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 18.04 LTS
- linux-aws-fips Fixed in 4.15.0-2064.67Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 4.15.0-2046.50Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 4.15.0-1081.90Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 4.15.0-2029.32Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS-updates 20.04 LTS
- linux-aws-fips Fixed in 5.4.0-1069.73+fips2Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-azure-fips Fixed in 5.4.0-1073.76+fips1Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-fips Fixed in 5.4.0-1046.52Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-gcp-fips Fixed in 5.4.0-1067.71~20.04.1Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS 16.04 LTS
- linux-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS 18.04 LTS
- linux-aws-fips No fix yet
- linux-azure-fips No fix yet
- linux-fips No fix yet
- linux-gcp-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro FIPS 20.04 LTS
- linux-aws-fips No fix yet
- linux-azure-fips No fix yet
- linux-fips No fix yet
- linux-gcp-fips No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. 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.