CVE-2023-5528Kubernetes - Windows nodes - Insufficient input sanitization in in-tree storage plugin leads to privilege escalation
- 7.2HighCVSS base score
- 4.1%Exploitation in 30 daysEPSS · top 9.1% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- YesPublic exploitsa reference or SSVC says so
Description
A security issue was discovered in Kubernetes where a user that can create pods and persistent volumes on Windows nodes may be able to escalate to admin privileges on those nodes. Kubernetes clusters are only affected if they are using an in-tree storage plugin for Windows nodes.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: a proof of concept is public.
Timeline
ID reserved
By kubernetes
- 34 days later
· 34 days later
Published
- 2 years later
· 2 years 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 |
|---|---|---|---|
| kubernetesCNA (assigner) | 3.1 | High7.2 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Analyzed | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 4.1% · top 9.1% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: poc · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.2.
Affected products
- affected v1.28.0 – ≤ v1.28.3
- affected v1.27.0 – ≤ v1.27.7
- affected v1.26.0 – ≤ v1.26.10
- affected ≤ v1.25.15
- unaffected v1.28.4
- unaffected v1.27.8
- unaffected v1.26.11
- unaffected v1.25.16
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gok8s.io/kubernetesGHSA-hq6q-c2x6-hmch (opens in a new tab)
References
References6
- https://github.com/kubernetes/kubernetes/issues/121879 (opens in a new tab)issue-trackingx_transferred
- https://groups.google.com/g/kubernetes-security-announce/c/SL_d4NR8pzA (opens in a new tab)mailing-listx_transferred
- https://lists.fedoraproject.org/archives/list/[email protected]/message/4XZIX727JIKF5RQW7RVVBLWXBCDIBJA7/ (opens in a new tab)x_transferred
- https://lists.fedoraproject.org/archives/list/[email protected]/message/7MPGMITSZXUCAVO7Q75675SOLXC2XXU4/ (opens in a new tab)x_transferred
- https://lists.fedoraproject.org/archives/list/[email protected]/message/3JH444PWZBINXLLFV7XLIJIZJHSK6UEZ/ (opens in a new tab)x_transferred
- https://security.netapp.com/advisory/ntap-20240119-0009/ (opens in a new tab)x_transferred
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-2023-2977 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-hq6q-c2x6-hmch (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-2023-5528)Record last updated .