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    CVE-2020-26147

    An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used.

    Published:May 11, 2021
    Last Modified:Apr 14, 2026
    EPS:May 11, 2021
    EPSS Score:0.00195
    CVSS Score:5.4

    Affected Products

    Vendor
    Arista
    Product
    C-65
    Vendor
    Arista
    Product
    C-65 Firmware
    Vendor
    Arista
    Product
    C-75
    Vendor
    Arista
    Product
    C-75 Firmware
    Vendor
    Arista
    Product
    O-90
    Vendor
    Arista
    Product
    O-90 Firmware
    Vendor
    Arista
    Product
    W-68
    Vendor
    Arista
    Product
    W-68 Firmware
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Siemens
    Product
    Scalance W1700 Ieee 802.11ac
    Vendor
    Siemens
    Product
    Scalance W1700 Ieee 802.11ac Firmware
    Vendor
    Siemens
    Product
    Scalance W700 Ieee 802.11n
    Vendor
    Siemens
    Product
    Scalance W700 Ieee 802.11n Firmware

    Exploits

    No exploit reference

    Related CVEs

    CVE-2020-26139 (CVSS 5.3) — An issue was discovered in the kernel in NetBSD 7.1. An Access Point (AP) forwards EAPOL frames to other clien…
    CVE-2020-24588 (CVSS 3.5) — The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (…
    CVE-2020-26140 (CVSS 6.5) — An issue was discovered in the ALFA Windows 10 driver 6.1316.1209 for AWUS036H. The WEP, WPA, WPA2, and WPA3 i…
    CVE-2020-26143 (CVSS 6.5) — An issue was discovered in the ALFA Windows 10 driver 1030.36.604 for AWUS036ACH. The WEP, WPA, WPA2, and WPA3…
    CVE-2020-26144 (CVSS 6.5) — An issue was discovered on Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2, and WPA3 implementations…
    CVE-2020-24587 (CVSS 2.6) — The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (…
    CVE-2020-26146 (CVSS 5.3) — An issue was discovered on Samsung Galaxy S3 i9305 4.4.4 devices. The WPA, WPA2, and WPA3 implementations reas…

    References

    http://www.openwall.com/lists/oss-security/2021/05/11/12
    https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf
    https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md
    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.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63
    https://www.fragattacks.com
    http://www.openwall.com/lists/oss-security/2021/05/11/12
    https://cert-portal.siemens.com/productcert/pdf/ssa-913875.pdf
    https://github.com/vanhoefm/fragattacks/blob/master/SUMMARY.md
    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.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63
    https://www.fragattacks.com
    https://cert-portal.siemens.com/productcert/html/ssa-019200.html
    https://cert-portal.siemens.com/productcert/html/ssa-913875.html

    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