CVE-2026-97451: Linux kernel · mid_op
Affects Linux kernelSource GCVE Database
Not known to be exploited · CVSS 8.4 High.
Data as of 26 Oct 2026, 17:16 UTC
- EPSS
- 0.1% chance of exploitation in 30 days – higher than 3% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation 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 implemented to add an overflow check in the affected function. Users should apply the official patches or upgrade to fixed Linux kernel versions to remediate this vulnerability. Since this is not a cloud service, remediation depends on applying vendor-provided updates. Check vendor advisories for the exact fixed versions and apply updates accordingly.
Description
A vulnerability in the Linux kernel's ACPICA component was resolved by adding an overflow check in the acpi_ex_opcode_3A_1T_1R() function. The flaw allowed an integer overflow when calculating truncation length, which could lead to a negative size parameter being passed to memcpy(). This issue affects specific Linux kernel versions and has a CVSS score of 8.4, indicating a high severity impact on confidentiality, integrity, and availability.
References
- ubuntu.com/security/CVE-2026-97451 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-97451 (opens in a new tab)
- git.kernel.org/stable/c/0e2021f49e64b3c8a9aa880d0c62a218bfe147ce (opens in a new tab)
- git.kernel.org/stable/c/b96401812cbfbb4803faabeefa1f20b8562268b3 (opens in a new tab)
- git.kernel.org/stable/c/d0d89f2e16a874e0f8fb17045da293e8bedf8b21 (opens in a new tab)
- nvd.nist.gov/vuln/detail/CVE-2026-97451 (opens in a new tab)
- git.kernel.org/stable/c/4532c9cf006bb6323957897455b6a5ab45957a19 (opens in a new tab)
- git.kernel.org/stable/c/6da963ed4c3de0963c23809af3194323328080d2 (opens in a new tab)
- git.kernel.org/stable/c/9010ad440f970e684324d507510415a67bc125e4 (opens in a new tab)
- git.kernel.org/stable/c/e539003886b34c8109574820b9ba67f0dbe62a12 (opens in a new tab)