CVE-2026-68153: libceph: remove debugfs files before client teardown
CSIRTS triage
- What
- libceph debugfs files are not removed before client teardown, causing use-after-free and information disclosure.
- Who is affected
- All systems using Ceph client functionality in affected kernel versions.
- Urgency
- Critical; CVSS 9.8 severity indicates potential for high-impact exploitation and should be patched immediately.
- Action
- Apply kernel security patch for libceph debugfs cleanup before client teardown.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-68153
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-681530.13% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 3% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-68153 | coverage & exploitation status | NVD · CVE.org |
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