CVE Database›Document archive›CVE-2020-26147

CVE-2020-26147

kernel: reassembling mixed encrypted/plaintext fragments

Loading…

Severity

Low

Red Hat Product Security

5.4

CVSS 3.1

Review impact separately from score.

Published · May 11, 2021

Updated · June 28, 2026

Description

A flaw was found in ieee80211_rx_h_defragment in net/mac80211/rx.c in the Linux Kernel's WiFi implementation. This vulnerability can be abused to inject packets or exfiltrate selected fragments when another device sends fragmented frames, and the WEP, CCMP, or GCMP data-confidentiality protocol is used. The highest threat from this vulnerability is to integrity.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Mitigation for this issue is either not available or the currently available options does not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

CVSS / CWE

CVSS 3.1 · 5.4
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:L/I:H/A:N

CVSS 3.1 · 4.8
CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

CWE-307 · Improper Restriction of Excessive Authentication Attempts