HOMEVULNERABILITIESCVE-2026-31549
MEDIUM

CVE-2026-31549

Published: April 24, 2026· Updated: Apr 27, 2026

5.5
CVSS v3.1
EPSS:0.02%probability of exploitation in 30 daysPercentile:6.8th

Official 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).

NVD Source

Technical Analysis

CVE-2026-31549 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in availability disruption (denial of service), with a CVSS base score of 5.5.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected Vendors & Products

Linux1 product
linux kernel
Source: NVD CPE · 3 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

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

All References (7)

→
https://git.kernel.org/stable/c/13ccf9b106bba121728f1625c4375a1bd8f5c5a3Patch
→
https://git.kernel.org/stable/c/4a22af879172336370ae3e81e7f65fb2f69472eePatch
→
https://git.kernel.org/stable/c/69aece634a7eebafd9a596e5494d52facf6f26ecPatch
→
https://git.kernel.org/stable/c/a9778298f47036866ea15eeb17242e8a4612580fPatch
→
https://git.kernel.org/stable/c/aa79f996eb41e95aed85a1bd7f56bcd6a3842008Patch
→
https://git.kernel.org/stable/c/e68c267787778bcdf3d91b06f794faaba7f0d1d1Patch
→
https://git.kernel.org/stable/c/efe996bcfe50c2dcc6cf65c574285713b722ced7Patch

Quick Facts

CVE IDCVE-2026-31549
CVSS Score5.5 / 10
SeverityMEDIUM
CISA KEVNo
EPSS (30d)0.02%
Affected1 vendor
PublishedApr 24, 2026

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-31549 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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