CVE-2021-43976: debian debian_linux
Vulnerability summary
CVE-2021-43976 is a medium (CVSS 4.6) vulnerability in debian debian_linux. EPSS estimates a 0.69% chance of exploitation in the next 30 days, higher than 52.9% of scored vulnerabilities.
Not severe (CVSS 4.6, physical access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 29 · Related 23Timeline
- 17-11-2021PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
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 (skb_over_panic).
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated4.6MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated4.6MediumCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.69%
Chance of exploitation in the next 30 days
Percentile
53%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.69% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: physical access, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu68 products
- linuxAll versions (No fix recorded) | < 4.4.0-223.256 | < 4.15.0-173.182 | < 5.4.0-105.119
- linux-aws< 4.4.0-1103.108 | < 4.4.0-1139.153 | < 4.15.0-1124.133 | < 5.4.0-1069.73
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
- linux-aws-5.13< 5.13.0-1022.24~20.04.1
Oracle3 products
Debian2 products
- linux< 5.15.15-2
- debian_linuxEOL9.0 | 10.0 | 11.0
Fedoraproject1 product
- fedoraEOL34 | 35
Linux1 product
- linux_kernel≤ 5.15.2
Opensuse1 product
- kernel-source&distro=openSUSE Tumbleweed< 5.15.6-1.3
7 vendors · 85 products
References
23 links- lists.fedoraproject.org/archives/…Vendor Advisory
- lists.fedoraproject.org/archives/…Vendor Advisory
- security.netapp.com/advisory/ntap-20211210-0001/Third Party Advisory
Show all 23 references
- git.kernel.org/pub/…REPORT
