CVE-2026-43111: Linux kernel · HID: roccat: fix use-after-free in roccat_report_event
Affects Linux kernelSource CVE Database V5
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
- 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:HExploitation evidence
Disclosed: evidence found.
CVE published 6 May 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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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
- git.kernel.org/stable/c/20dca865460f7943cf70afca274b60dac371f546 (opens in a new tab)
- git.kernel.org/stable/c/441689e3103694caa3e2d62b7d57c7bccefa5e37 (opens in a new tab)
- git.kernel.org/stable/c/181ea51ab0f6370842c5b49cfb86824253a1189e (opens in a new tab)
- git.kernel.org/stable/c/e6a445513fbc6a0329d2d5ff375b6725750ec5a6 (opens in a new tab)
- git.kernel.org/stable/c/e16a6d11bd77b81632165f02cf0d5946df74b3b7 (opens in a new tab)
- git.kernel.org/stable/c/36bb2d0b915014bbdc5044982b31b57b78045b93 (opens in a new tab)
- git.kernel.org/stable/c/bca0b595e15450dd66b1153c76c4ef1087ee011b (opens in a new tab)
- git.kernel.org/stable/c/d802d848308b35220f21a8025352f0c0aba15c12 (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-784472.html (opens in a new tab)