CVE-2025-27558 Other in n/a
Attackers can inject arbitrary frames into Wi-Fi mesh networks, bypassing security protections and modifying data on affected devices.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2025-27558?
CVE-2025-27558 is a critical vulnerability in n/a, published on 21 May 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
IEEE P802.11-REVme D1.1 through D7.0 allows FragAttacks against mesh networks. In mesh networks using Wi-Fi Protected Access (WPA, WPA2, or WPA3) or Wired Equivalent Privacy (WEP), an adversary can exploit this vulnerability to inject arbitrary frames towards devices that support receiving non-SSP A-MSDU frames. NOTE: this issue exists because of an incorrect fix for CVE-2020-24588. P802.11-REVme, as of early 2025, is a planned release of the 802.11 standard.
Weakness: CWE-345
Which versions are affected by CVE-2025-27558?
How do I fix CVE-2025-27558?
Apply the vendor's patch.
Is CVE-2025-27558 being exploited?
There is no known exploitation of CVE-2025-27558 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Sources
Also known as BELL-CVE-2025-27558, DEBIAN-CVE-2025-27558, GHSA-hchj-55px-fgw7, ROOT-OS-UBUNTU-2204-CVE-2025-27558, UBUNTU-CVE-2025-27558.