CVE-2023-53476

low-risk
Published 2025-10-01

In the Linux kernel, the following vulnerability has been resolved: iw_cxgb4: Fix potential NULL dereference in c4iw_fill_res_cm_id_entry() This condition needs to match the previous "if (epcp->state == LISTEN) {" exactly to avoid a NULL dereference of either "listen_ep" or "ep". The problem is that "epcp" has been re-assigned so just testing "if (epcp->state == LISTEN) {" a second time is not sufficient.

Do I need to act?

-
0.01% chance of exploitation
EPSS score — low exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (4)

Patch https://git.kernel.org/stable/c/24278dc380aab6a1aef0a75317f57ad4c2453cf6
Patch https://git.kernel.org/stable/c/4ca446b127c568b59cb8d9748b6f70499624bb18
Patch https://git.kernel.org/stable/c/76e0396313c79ecd0df44ee3c18745cfac52b3e6
Patch https://git.kernel.org/stable/c/dd55240e4364d64befcc575b0d33091881524f42
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal