CVE-2026-93213: Linux kernel · of: fix out-of-bounds read in of_alias_scan() stem parser
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 17:16 UTC
Rated by Threat Radar · CVSS not yet scored by NVD
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 24 Sep 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
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 fix has been applied to the Linux kernel to correct the boundary check order in the of_alias_scan() function. Users should update to patched kernel versions to remediate this issue. Specific patched versions are not listed here; check vendor advisories for the exact fixed versions.
Description
A vulnerability in the Linux kernel's device tree parser (of_alias_scan function) caused an out-of-bounds read due to improper boundary checking before accessing memory. This issue was fixed by correcting the order of checks to ensure bounds are verified before reading bytes. The vulnerability affects specific Linux kernel versions and has a medium severity rating.
References
- ubuntu.com/security/CVE-2026-93213 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-93213 (opens in a new tab)
- git.kernel.org/stable/c/96a9c984dd7c3589a2707a32b62802f98311dbfd (opens in a new tab)
- git.kernel.org/stable/c/da7a80ddc610a19b0378016a4d816b9355f013a7 (opens in a new tab)
- git.kernel.org/stable/c/f7f6c3e32a31f2e1ed12075e8cd22b370a84e67a (opens in a new tab)
- git.kernel.org/stable/c/9253cfc5a85be1494ce56b4fc6f2d2b509440910 (opens in a new tab)
- git.kernel.org/stable/c/5bb01c657ff9fc807c2c592ca18af34c4fc3bc6f (opens in a new tab)
- git.kernel.org/stable/c/fd0c7bbda81c0e0c1cb7b68d267b87371584f560 (opens in a new tab)
- git.kernel.org/stable/c/958d7ee9fcf008ef9d2072c6410ee1bf6abf3b64 (opens in a new tab)
- git.kernel.org/stable/c/acd1b49043366f43e932308b4db7d3ce568eeadb (opens in a new tab)
- msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-93213.json (opens in a new tab)
- support.microsoft.com/lifecycle (opens in a new tab)
- first.org/cvss (opens in a new tab)