VULNERABILITY INTELLIGENCE

CVE-2020-24588

CVSS score3.5 LOW
EPSS probability3.61%
CISA KEVNot currently listed
Published2021-05-11
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Description

The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets.

Weakness classification

  • CWE-327: Use of a Broken or Risky Cryptographic Algorithm

Primary references