The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that received fragments be cleared from memory after (re)connecting to a network. Under the right circumstances, when another device sends fragmented frames encrypted using WEP, CCMP, or GCMP, this can be abused to inject arbitrary network packets and/or exfiltrate user data.
https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md
http://www.openwall.com/lists/oss-security/2021/05/11/12
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWu
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00473.html
https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63
https://lists.debian.org/debian-lts-announce/2023/04/msg00002.html
Source: MITRE
Published: 2021-05-11
Updated: 2023-04-01
Type: NVD-CWE-Other
Base Score: 2.9
Vector: AV:A/AC:M/Au:N/C:P/I:N/A:N
Impact Score: 2.9
Exploitability Score: 5.5
Severity: LOW
Base Score: 3.5
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Impact Score: 1.4
Exploitability Score: 2.1
Severity: LOW