CVE-2020-26147

5.4 MEDIUM
Published: May 11, 2021 Modified: April 14, 2026
View on NVD

Description

An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/05/11/12
Source: cve@mitre.org
Mailing List Patch Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf
Source: cve@mitre.org
Third Party Advisory
https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md
Source: cve@mitre.org
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
Source: cve@mitre.org
Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
Source: cve@mitre.org
Mailing List Third Party Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu
Source: cve@mitre.org
Third Party Advisory
https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63
Source: cve@mitre.org
Third Party Advisory
https://www.fragattacks.com
Source: cve@mitre.org
Product
http://www.openwall.com/lists/oss-security/2021/05/11/12
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Patch Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
Source: af854a3a-2127-422b-91ae-364da2661108
Mailing List Third Party Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
https://www.fragattacks.com
Source: af854a3a-2127-422b-91ae-364da2661108
Product
https://cert-portal.siemens.com/productcert/html/ssa-019200.html
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
https://cert-portal.siemens.com/productcert/html/ssa-913875.html
Source: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e

18 reference(s) from NVD

Quick Stats

CVSS v3 Score
5.4 / 10.0
EPSS (Exploit Probability)
0.5%
64th percentile
Exploitation Status
Not in CISA KEV

Affected Vendors

arista debian linux siemens