CVE-2020-26142

Published: May 11, 2021Modified: Jun 17, 2026

5.3

Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

Exploitability: 1.6 / Impact: 3.6

Source: NVD

Description

An issue was discovered in the kernel in OpenBSD 6.6. The WEP, WPA, WPA2, and WPA3 implementations treat fragmented frames as full frames. An adversary can abuse this to inject arbitrary network packets, independent of the network configuration.

Affected (1)

Products: Openbsd: Openbsd

Openbsd

1 product

Openbsd

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Openbsd Openbsd	Version 6.6

Related CWEs

CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

References (10)

http://www.openwall.com/lists/oss-security/2021/05/11/12

Source: cve@mitre.org

Mailing ListThird Party Advisory

https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md

Source: cve@mitre.org

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

Third Party Advisory

http://www.openwall.com/lists/oss-security/2021/05/11/12