CVE-2020-26147: Arista C-65 Firmware

Medium severity, CVSS 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.

Affected products

• Arista C-65 Firmware: affected versions not specified
• Arista C-75 Firmware: affected versions not specified
• Arista O-90 Firmware: affected versions not specified
• Arista W-68 Firmware: affected versions not specified
• Debian Debian Linux: version 9.0 only
• Linux Linux Kernel: from 4.4, before 4.4.271 (fixed in 4.4.271); from 4.9, before 4.9.271 (fixed in 4.9.271); from 4.14, before 4.14.235 (fixed in 4.14.235); from 4.19, before 4.19.193 (fixed in 4.19.193); from 5.4, before 5.4.124 (fixed in 5.4.124); from 5.10, before 5.10.42 (fixed in 5.10.42); …
• Siemens Scalance w1700 Ieee 802.11ac Firmware: any version
• Siemens Scalance w700 Ieee 802.11n Firmware: any version

Published 2021-05-11. Last modified 2026-06-17.