HOMEVULNERABILITIESCVE-2026-43231
MEDIUM

CVE-2026-43231

Published: May 6, 2026· Updated: May 8, 2026

5.5
CVSS v3.1
EPSS:0.02%probability of exploitation in 30 daysPercentile:7.0th

Official Description

In the Linux kernel, the following vulnerability has been resolved:

media: radio-keene: fix memory leak in error path

Fix a memory leak in usb_keene_probe(). The v4l2 control handler is

initialized and controls are added, but if v4l2_device_register() or

video_register_device() fails afterward, the handler was never freed,

leaking memory.

Add v4l2_ctrl_handler_free() call in the err_v4l2 error path to ensure

the control handler is properly freed for all error paths after it is

initialized.

NVD Source

Technical Analysis

CVE-2026-43231 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 · 1 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/1d8558a232ecb187e8e0328d6347a125f437a0fc
PATCHhttps://git.kernel.org/stable/c/242b0aabb1866024a7995a767ac330c158b39aa4
PATCHhttps://git.kernel.org/stable/c/27c508f61963013fdf29097578284099ee7a85a4
PATCHhttps://git.kernel.org/stable/c/2fe28a63d598235595a9601e0d8fdc7c8f4fd575
PATCHhttps://git.kernel.org/stable/c/7fa9754f48cb8eefa566156be341e63d313247e5
PATCHhttps://git.kernel.org/stable/c/ad85bb5623079a35bd400f51de2e2fbc2170bdb2
PATCHhttps://git.kernel.org/stable/c/b8bf939d77c0cd01118e953bbf554e0fa15e9006
PATCHhttps://git.kernel.org/stable/c/de204d87e7d61859937272fe30cbdd46a4cfb10a

All References (8)

→
https://git.kernel.org/stable/c/1d8558a232ecb187e8e0328d6347a125f437a0fcPatch
→
https://git.kernel.org/stable/c/242b0aabb1866024a7995a767ac330c158b39aa4Patch
→
https://git.kernel.org/stable/c/27c508f61963013fdf29097578284099ee7a85a4Patch
→
https://git.kernel.org/stable/c/2fe28a63d598235595a9601e0d8fdc7c8f4fd575Patch
→
https://git.kernel.org/stable/c/7fa9754f48cb8eefa566156be341e63d313247e5Patch
→
https://git.kernel.org/stable/c/ad85bb5623079a35bd400f51de2e2fbc2170bdb2Patch
→
https://git.kernel.org/stable/c/b8bf939d77c0cd01118e953bbf554e0fa15e9006Patch
→
https://git.kernel.org/stable/c/de204d87e7d61859937272fe30cbdd46a4cfb10aPatch

Quick Facts

CVE IDCVE-2026-43231
CVSS Score5.5 / 10
SeverityMEDIUM
CISA KEVNo
EPSS (30d)0.02%
Affected1 vendor
PublishedMay 6, 2026

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-43231 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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