CVE-2020-24587

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    CVE-2020-24587

    Published: 11 May 2021Last Modified: 16 Apr 2026

    Summary:

    Details: 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.

    References: https://lists.debian.org/debian-lts-announce/2023/04/msg00002.html, https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00473.html, https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md, https://www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63, 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.fragattacks.com

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: N/A

    Events:

    Introduced- None
    Fixed -None

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2020-24587 | CVE-DB