CVE-2020-24587

The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same key. An adversary can abuse this to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed.

• CWE-327

• http://www.openwall.com/lists/oss-security/2021/05/11/12Mailing List, Third Party Advisory
• https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.mdThird Party Advisory
• https://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlMailing List, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlMailing List, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2023/04/msg00002.html
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWuThird Party Advisory
• https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63Third Party Advisory
• https://www.fragattacks.comExploit, Third Party Advisory
• https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00473.htmlThird Party Advisory
• http://www.openwall.com/lists/oss-security/2021/05/11/12Mailing List, Third Party Advisory
• https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.mdThird Party Advisory
• https://lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlMailing List, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlMailing List, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2023/04/msg00002.html
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWuThird Party Advisory
• https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63Third Party Advisory
• https://www.fragattacks.comExploit, Third Party Advisory
• https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00473.htmlThird Party Advisory

Published

May 11, 2021

Last Modified

Jun 17, 2026

Status

Modified

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