CVE-2021-0326
wpa_supplicant: P2P group information processing vulnerability
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · February 4, 2021
Updated · November 22, 2025
Description
A buffer overflow flaw was found in the P2P (Wi-Fi Direct) support of wpa_supplicant. This flaw allows an attacker within radio range of the vulnerable system to send a specially crafted management frame that triggers a P2P peer device information to be created or updated, leading to the crashing of the wpa_supplicant process or arbitrary code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
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
Disable Wi-Fi P2P support (Wi-Fi Direct) if not needed, by using the control interface command "P2P_SET disabled 1" or setting "p2p_disabled=1" in wpa_supplicant configuration file.
CVSS / CWE
CVSS 3.1 · 7.5CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CWE-120 · Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')