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CVE-2026-72066cpu: hotplug: Bound hotplug states sysfs output
- 7.8HighCVSS base score
- 0.18%Exploitation in 30 daysEPSS · top 93% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: cpu: hotplug: Bound hotplug states sysfs output states_show() adds CPU hotplug state names into a single sysfs buffer using sprintf(). With enough registered states, this can write past the end of the PAGE_SIZE buffer. Use sysfs_emit_at() so output is bounded.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 2 months later
· 2 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Received | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.18% · top 93% of all CVEs (12 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 98f8cdce1db580b99fce823a48eea2cb2bdb261e – < 27481cf4365a6ff5c9be3590143e7ed434000266
- affected 98f8cdce1db580b99fce823a48eea2cb2bdb261e – < 2408be459c70ef4250da1a9e50f5478e6b250d61
- affected 98f8cdce1db580b99fce823a48eea2cb2bdb261e – < de4d3d8ae17dc8b4cf8c59436c4b7e2dc2491635
- affected 98f8cdce1db580b99fce823a48eea2cb2bdb261e – < 998f66e9ce320f3433f60b948e3698b744754a46
- affected 98f8cdce1db580b99fce823a48eea2cb2bdb261e – < 61a73a123ac7a7fbc57382531f8cb7092d569aba
- affected 98f8cdce1db580b99fce823a48eea2cb2bdb261e – < 6cb15b81ff545840048fb0e1a6e827d560dbf367
- affected 98f8cdce1db580b99fce823a48eea2cb2bdb261e – < 631d53102da9f469c96b882b770336bec095b833
- affected 98f8cdce1db580b99fce823a48eea2cb2bdb261e – < 86f436567f2516a0083b210bedc933544826a2c3
- affected 4.6
- unaffected < 4.6
- unaffected 5.10.265 – ≤ 5.10.*
- unaffected 5.15.212 – ≤ 5.15.*
- unaffected 6.1.178 – ≤ 6.1.*
- unaffected 6.6.145 – ≤ 6.6.*
- unaffected 6.12.97 – ≤ 6.12.*
- unaffected 6.18.40 – ≤ 6.18.*
- unaffected 7.1.5 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/27481cf4365a6ff5c9be3590143e7ed434000266 (opens in a new tab)
- https://git.kernel.org/stable/c/2408be459c70ef4250da1a9e50f5478e6b250d61 (opens in a new tab)
- https://git.kernel.org/stable/c/de4d3d8ae17dc8b4cf8c59436c4b7e2dc2491635 (opens in a new tab)
- https://git.kernel.org/stable/c/998f66e9ce320f3433f60b948e3698b744754a46 (opens in a new tab)
- https://git.kernel.org/stable/c/61a73a123ac7a7fbc57382531f8cb7092d569aba (opens in a new tab)
- https://git.kernel.org/stable/c/6cb15b81ff545840048fb0e1a6e827d560dbf367 (opens in a new tab)
- https://git.kernel.org/stable/c/631d53102da9f469c96b882b770336bec095b833 (opens in a new tab)
- https://git.kernel.org/stable/c/86f436567f2516a0083b210bedc933544826a2c3 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-59024 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-72066)Record last updated .