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CVE-2025-21730

17
FAUCET Score

CVE-2025-21730 is a vulnerability in the Linux kernel's rtw89 Wi-Fi driver. It arises when Wake-on-LAN (WoLAN) fails during the system resume process, leading to a double initialization of the mgnt_entry list and a kernel crash due to list corruption. This vulnerability has a CVSS score of 5.5 (Medium), indicating a local attack vector with low attack complexity. A successful exploit could lead to a denial of service (system crash), but does not appear to impact confidentiality or integrity. There is currently no evidence of active exploitation, nor is exploit code publicly available in Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.13, < 6.13.2CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.18%
Probability of exploitation in next 30 days
EPSS Percentile
7.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0018 is in the 39th percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2025-21730

kernel: wifi: rtw89: avoid to init mgnt_entry list twice when WoWLAN failed

Feb 27, 2025

References

git.kernel.org / stable/c/2f7667675df1b40b73ecc53b4b8c3189b1e5f2c1
Patch
git.kernel.org / stable/c/4ed5bf49819757303e657f3900725febf2f3926f
Patch
git.kernel.org / stable/c/7fc295fdd3992a9a07d12fd3f2e84dface23aedc
Patch