Medium severity5.4NVD Advisory· Published May 11, 2021· Updated Apr 14, 2026
CVE-2020-26147
CVE-2020-26147
Description
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.
Affected products
8- cpe:2.3:o:arista:c-65_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:arista:c-75_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:arista:o-90_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:arista:w-68_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_w1700_ieee_802.11ac_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:siemens:scalance_w700_ieee_802.11n_firmware:*:*:*:*:*:*:*:*
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
10- www.openwall.com/lists/oss-security/2021/05/11/12nvdMailing ListPatchThird Party Advisory
- cert-portal.siemens.com/productcert/pdf/ssa-913875.pdfnvdThird Party Advisory
- github.com/vanhoefm/fragattacks/blob/master/SUMMARY.mdnvdThird Party Advisory
- lists.debian.org/debian-lts-announce/2021/06/msg00019.htmlnvdMailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2021/06/msg00020.htmlnvdMailing ListThird Party Advisory
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wifi-faf-22epcEWunvdThird Party Advisory
- www.arista.com/en/support/advisories-notices/security-advisories/12602-security-advisory-63nvdThird Party Advisory
- www.fragattacks.comnvdProduct
- cert-portal.siemens.com/productcert/html/ssa-019200.htmlnvd
- cert-portal.siemens.com/productcert/html/ssa-913875.htmlnvd
News mentions
1- Siemens SCALANCECISA Alerts