CVE-2023-53321

wifi: mac80211_hwsim: drop short frames

High · published September 16, 2025

CVSS v3.1
7.1
EPSS
0%
Percentile
4.1
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

wifi: mac80211_hwsim: drop short frames

While technically some control frames like ACK are shorter and

end after Address 1, such frames shouldn't be forwarded through

wmediumd or similar userspace, so require the full 3-address

header to avoid accessing invalid memory if shorter frames are

passed in.

The record
Technical detail
CVSS v3.1
7.1 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00152 · 4.1th percentile
Published
2025-09-16T16:11Z
EPSS history
Timeline
  • 16 SEP 16:11Z
    wifi: mac80211_hwsim: drop short frames
    cvelistv5