CVSS 3.1
5.4 mediumCVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:NCVE-2020-26147
Medium (5.4). EPSS 7.6% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 7.6% chance of exploitation in the next 30 days; higher than 94% of CVEs (scores of 2026-10-31)
- Published
- Modified
- Record from
- the NVD, synced
Affected
- arista:c-65_firmware
- arista:c-75_firmware
- arista:o-90_firmware
- arista:w-68_firmware
- debian:debian_linux
- linux:linux_kernel
- siemens:scalance_w1700_ieee_802.11ac_firmware
- siemens:scalance_w700_ieee_802.11n_firmware
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