CVE-2026-43225: linux kernel — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix memory leak on failure path cfg80211_inform_bss_frame() may return NULL on failure. In that case, the allocated buffer 'buf' is not freed and the function returns early, leading to potential memory leak. Fix this by ensuring that 'buf' is freed on both success and failure paths.

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CVSS v3.1 Score

5.5

MEDIUM

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

EPSS — Exploit Prediction

0.0001

Probability of exploitation

0.02%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-401 CWE-401

Affected Products

Vendor	Product	Versions
linux	linux_kernel	4.12 — 5.15.202
linux	linux_kernel	5.16 — 6.1.165
linux	linux_kernel	6.2 — 6.6.128
linux	linux_kernel	6.7 — 6.12.75
linux	linux_kernel	6.13 — 6.18.16
linux	linux_kernel	6.19 — 6.19.6

References

Advisories & Patches

https://git.kernel.org/stable/c/017295b17bf1f477246c95bd253a7ef0cb4684c9 https://git.kernel.org/stable/c/8311bb40698ba027649d5d1ca84ad4bf25270546 https://git.kernel.org/stable/c/9874e33ce52ba449ab0ade78752a2d37a2294617 https://git.kernel.org/stable/c/9f70f78e22b321429afc77befecedf05543d4e2c https://git.kernel.org/stable/c/a968c6a39607c129b8ac2c3c2a5e8923574e90d0 https://git.kernel.org/stable/c/abe850d82c8cb72d28700673678724e779b1826e https://git.kernel.org/stable/c/af48c1a0abe849e167fc754b6c260b6d8350b6fd

Frequently Asked Questions

What is CVE-2026-43225? +

In the Linux kernel, the following vulnerability has been resolved: staging: rtl8723bs: fix memory leak on failure path cfg80211_inform_bss_frame() may return NULL on failure. In that case, the allocated buffer 'buf' is not freed and the function returns early, leading to potential memory leak. Fix this by ensuring that 'buf' is freed on both success and failure paths. It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-43225? +

CVE-2026-43225 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0001, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2026-43225? +

CVE-2026-43225 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2026-43225? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2026-43225