CVE-2026-31549

Description

In the Linux kernel, the following vulnerability has been resolved: i2c: cp2615: fix serial string NULL-deref at probe The cp2615 driver uses the USB device serial string as the i2c adapter name but does not make sure that the string exists. Verify that the device has a serial number before accessing it to avoid triggering a NULL-pointer dereference (e.g. with malicious devices).

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-476 CWE-476

Affected Products

Vendor	Product	Versions
linux	linux_kernel	5.13.1 — 5.15.203
linux	linux_kernel	5.16 — 6.1.167
linux	linux_kernel	6.2 — 6.6.130
linux	linux_kernel	6.7 — 6.12.78
linux	linux_kernel	6.13 — 6.18.20
linux	linux_kernel	6.19 — 6.19.10
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All
linux	linux_kernel	All

References

Advisories & Patches

https://git.kernel.org/stable/c/13ccf9b106bba121728f1625c4375a1bd8f5c5a3 https://git.kernel.org/stable/c/4a22af879172336370ae3e81e7f65fb2f69472ee https://git.kernel.org/stable/c/69aece634a7eebafd9a596e5494d52facf6f26ec https://git.kernel.org/stable/c/a9778298f47036866ea15eeb17242e8a4612580f https://git.kernel.org/stable/c/aa79f996eb41e95aed85a1bd7f56bcd6a3842008 https://git.kernel.org/stable/c/e68c267787778bcdf3d91b06f794faaba7f0d1d1 https://git.kernel.org/stable/c/efe996bcfe50c2dcc6cf65c574285713b722ced7

Frequently Asked Questions

What is CVE-2026-31549? +

In the Linux kernel, the following vulnerability has been resolved: i2c: cp2615: fix serial string NULL-deref at probe The cp2615 driver uses the USB device serial string as the i2c adapter name but does not make sure that the string exists. Verify that the device has a serial number before accessing it to avoid triggering a NULL-pointer dereference (e.g. with malicious devices). It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2026-31549? +

CVE-2026-31549 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-2026-31549? +

CVE-2026-31549 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-2026-31549? +

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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