CVE-2026-97449: Linux kernel · ACPICA: Add package limit checks in parser functions
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 6% 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 is available that adds package limit checks in the ACPICA parser functions to prevent out-of-bounds access. Users should apply the official Linux kernel updates that address CVE-2026-97449 for the affected versions. Since this is a kernel-level vulnerability, updating to patched kernel versions is the recommended remediation.
Description
A vulnerability in the Linux kernel's ACPICA component has been resolved by adding package limit checks in parser functions to prevent out-of-bounds access. This issue could potentially lead to memory safety problems if exploited. The vulnerability affects specific Linux kernel versions listed and is assessed as medium severity.
References
- ubuntu.com/security/CVE-2026-97449 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-97449 (opens in a new tab)
- git.kernel.org/stable/c/d27d48a528e437aed690f977e69a6fe73fe82ab5 (opens in a new tab)
- git.kernel.org/stable/c/1cac04312b77fb81209da13bf5e0b83962568fcb (opens in a new tab)
- git.kernel.org/stable/c/250800658bf3db32e7accc615b0a134c30fba203 (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-97449 (opens in a new tab)
- git.kernel.org/stable/c/2442772fd79a440c067936f307c4948c570d6f81 (opens in a new tab)
- git.kernel.org/stable/c/55594743fb6935d046cb6ce1e9f588828b43f3e9 (opens in a new tab)
- git.kernel.org/stable/c/7beb63a99f43c090ec235e44773bd906b3fded9f (opens in a new tab)
- git.kernel.org/stable/c/c82d4adeeb5acbd5231f082da11155017a4c241e (opens in a new tab)