HOMEVULNERABILITIESCVE-2026-43251
MEDIUM

CVE-2026-43251

Published: May 6, 2026· Updated: May 11, 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:

HID: prodikeys: Check presence of pm->input_ep82

Fake USB devices can send their own report descriptors for which the

input_mapping() hook does not get called. In this case, pm->input_ep82 stays

NULL, which leads to a crash later.

This does not happen with the real device, but can be provoked by imposing as

one.

NVD Source

Technical Analysis

CVE-2026-43251 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/3f1b21cc67a15d7d081378a9b8747dd000a017b8
PATCHhttps://git.kernel.org/stable/c/cee8337e1bad168136aecfe6416ecd7d3aa7529a
PATCHhttps://git.kernel.org/stable/c/d08f35f843881ec504d7537a9bb728a073db3366
PATCHhttps://git.kernel.org/stable/c/d5512ce892f774d37c53082adadfcad04f21b50e
PATCHhttps://git.kernel.org/stable/c/e7ac1cd823cd2e9fcbd5cb0b261d6d35dbb79341
PATCHhttps://git.kernel.org/stable/c/edccbf7d6dc05d692bde3a89de5a4001f72a0fa4
PATCHhttps://git.kernel.org/stable/c/ee572578f09f0e743e9383393a75c3a7a0f9b4c2
PATCHhttps://git.kernel.org/stable/c/f580c79683356632f12f2c2029f2fe936d953aa1

All References (8)

→
https://git.kernel.org/stable/c/3f1b21cc67a15d7d081378a9b8747dd000a017b8Patch
→
https://git.kernel.org/stable/c/cee8337e1bad168136aecfe6416ecd7d3aa7529aPatch
→
https://git.kernel.org/stable/c/d08f35f843881ec504d7537a9bb728a073db3366Patch
→
https://git.kernel.org/stable/c/d5512ce892f774d37c53082adadfcad04f21b50ePatch
→
https://git.kernel.org/stable/c/e7ac1cd823cd2e9fcbd5cb0b261d6d35dbb79341Patch
→
https://git.kernel.org/stable/c/edccbf7d6dc05d692bde3a89de5a4001f72a0fa4Patch
→
https://git.kernel.org/stable/c/ee572578f09f0e743e9383393a75c3a7a0f9b4c2Patch
→
https://git.kernel.org/stable/c/f580c79683356632f12f2c2029f2fe936d953aa1Patch

Quick Facts

CVE IDCVE-2026-43251
CVSS Score5.5 / 10
SeverityMEDIUM
CISA KEVNo
EPSS (30d)0.02%
Affected1 vendor
PublishedMay 6, 2026

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-43251 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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