CVE-2026-80595: Linux kernel · Input: ims-pcu – add response length checks
Affects Linux kernelSource GCVE Database
Not known to be exploited · fixed in 5.15.0-1117.124~20.04.1 : update Linux kernel when convenient.
Data as of 26 Oct 2026, 13:47 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 5.15.0-1117.124~20.04.1, 5.15.0-1123.132~20.04.1, 5.15.0-1122.131~20.04.1 +40
Exploitation evidence
Disclosed: evidence found.
CVE published 28 Aug 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 |
|---|---|---|
Ubuntu 26.04 LTSlinuxpkg:deb/ubuntu/linux?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-awspkg:deb/ubuntu/linux-aws?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-azurepkg:deb/ubuntu/linux-azure?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-azure-fdepkg:deb/ubuntu/linux-azure-fde?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-gcppkg:deb/ubuntu/linux-gcp?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Ubuntu 26.04 LTSlinux-gkepkg:deb/ubuntu/linux-gke?arch=source&distro=resoluteOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
A patch is available that adds response length checks to the ims-pcu driver in the Linux kernel. Users should apply the official kernel updates that include this fix. The vendor advisory confirms that this issue has been corrected in updated kernel releases.
Description
A vulnerability in the Linux kernel's ims-pcu driver was fixed by adding response length checks. The driver previously processed response data from device buffers without verifying that sufficient data was sent by the device, potentially causing out-of-bounds reads or processing of stale data. This flaw has been addressed by implementing checks on the expected response length before buffer access.
References
- nvd.nist.gov/vuln/detail/CVE-2026-80595 (opens in a new tab)
- git.kernel.org/stable/c/3e0e8d7f8139a9496e389e7372e3f8b57b3e4e3e (opens in a new tab)
- git.kernel.org/stable/c/48c9d92fd4ee3a8f5d2cb46c802a0eff8e67c79c (opens in a new tab)
- git.kernel.org/stable/c/89cf4d18ff87efa5c47ba38de36aea5c03f98b05 (opens in a new tab)
- git.kernel.org/stable/c/bbafb75cd9da50d86335cbd98b8b3492bb5e42a6 (opens in a new tab)
- git.kernel.org/stable/c/dc9fdb538ce5b7f32540991f4a25ab63fab7ba07 (opens in a new tab)
- git.kernel.org/stable/c/f28c5cabb2df09ad1fcfb7cdb2b3ed2f690d81f0 (opens in a new tab)
- git.kernel.org/stable/c/f3c63aecca90be42b66cdc66de7c4a6104104d17 (opens in a new tab)
- git.kernel.org/stable/c/f7f5afeed31baaca0b027c2d46a25ee86fb4c9da (opens in a new tab)
- ubuntu.com/security/CVE-2026-80595 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-80595 (opens in a new tab)
- git.kernel.org/linus/48c9d92fd4ee3a8f5d2cb46c802a0eff8e67c79c (opens in a new tab)
- ubuntu.com/security/notices/USN-8878-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8879-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8877-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8875-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8889-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-1 (opens in a new tab)
- ubuntu.com/security/notices/USN-8888-2 (opens in a new tab)
- ubuntu.com/security/notices/USN-8887-2 (opens in a new tab)