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VulnerabilityPublished Updated

CVE-2026-43111: Linux kernel · HID: roccat: fix use-after-free in roccat_report_event

Affects Linux kernelSource CVE Database V5

0

Not known to be exploited · CVSS 7.8 High · fixed in e16a6d11bd77b81632165f02cf0d5946df74b3b7 : patch Linux kernel soon.

Data as of 26 Oct 2026, 14:18 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.09% chance of exploitation in 30 days – higher than 0% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Total control over the software or total information disclosure

CISA SSVC assessment, 2026-10-16.

Patch
Available – fixed in e16a6d11bd77b81632165f02cf0d5946df74b3b7, e6a445513fbc6a0329d2d5ff375b6725750ec5a6, d802d848308b35220f21a8025352f0c0aba15c12 +5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 May 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378, < e16a6d11bd77b81632165f02cf0d5946df74b3b7
Fixed in
  • e16a6d11bd77b81632165f02cf0d5946df74b3b7
LinuxLinuxAffected
  • ≥ 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378, < e6a445513fbc6a0329d2d5ff375b6725750ec5a6
Fixed in
  • e6a445513fbc6a0329d2d5ff375b6725750ec5a6
LinuxLinuxAffected
  • ≥ 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378, < d802d848308b35220f21a8025352f0c0aba15c12
Fixed in
  • d802d848308b35220f21a8025352f0c0aba15c12
LinuxLinuxAffected
  • ≥ 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378, < bca0b595e15450dd66b1153c76c4ef1087ee011b
Fixed in
  • bca0b595e15450dd66b1153c76c4ef1087ee011b
LinuxLinuxAffected
  • ≥ 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378, < 441689e3103694caa3e2d62b7d57c7bccefa5e37
Fixed in
  • 441689e3103694caa3e2d62b7d57c7bccefa5e37
LinuxLinuxAffected
  • ≥ 206f5f2fcb5ff5bb0c60f9e9189937f3ca03e378, < 181ea51ab0f6370842c5b49cfb86824253a1189e
Fixed in
  • 181ea51ab0f6370842c5b49cfb86824253a1189e

Description

In the Linux kernel, the following vulnerability has been resolved: HID: roccat: fix use-after-free in roccat_report_event roccat_report_event() iterates over the device->readers list without holding the readers_lock. This allows a concurrent roccat_release() to remove and free a reader while it's still being accessed, leading to a use-after-free. Protect the readers list traversal with the readers_lock mutex.

References

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