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CVE-2026-23201

20
FAUCET Score

CVE-2026-23201 is a kernel oops vulnerability in the Linux kernel's Ceph filesystem driver. It occurs when listing Ceph snapshot directories due to an invalid pointer being passed to kfree() in the parse_longname() function. This can lead to a system crash and denial of service. While no CVSS score is provided, the FAUCET Risk Score is 20/100, indicating a low to moderate severity. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 6.12.42, < 6.12.70CPE match
cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.15.10, < 6.16CPE match
cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.16.1, < 6.17CPE match
cpe:2.3:a:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.12.42, < 6.12.70CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.15.10, < 6.16CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.11%
Probability of exploitation in next 30 days
EPSS Percentile
1.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0011 is in the 10th percentile among its peer group of 15,940 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2026-23201

kernel: ceph: fix oops due to invalid pointer for kfree() in parse_longname()

Feb 14, 2026

References

git.kernel.org / stable/c/8c9af7339de419819cfc641d551675d38ff99abf
Patch
git.kernel.org / stable/c/bc8dedae022ce3058659c3addef3ec4b41d15e00
Patch
git.kernel.org / stable/c/e258ed369c9e04caa7d2fd49785d753ae4034cb6
Patch