CVE-2025-52555

mediumpriority · track · 0EPSS 0.002 · 11 %ileEURUUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.21% (11th) EPSS
CVSS 6.5 · medium
Is it mine?
12 products
Check your exposure
Who says so?
4 sources
cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-27

Ceph is a distributed object, block, and file storage platform. In versions 17.2.7, 18.2.1 through 18.2.4, and 19.0.0 through 19.2.2, an unprivileged user can escalate to root privileges in a ceph-fuse mounted CephFS by chmod 777 a directory owned by root to gain access. The result of this is that a user could read, write and execute to any directory owned by root as long as they chmod 777 it. This impacts confidentiality, integrity, and availability. It is patched in versions 17.2.8, 18.2.5, and 19.2.3.

01

cvss

Technical severity, 0–10. One row per scoring source.

6.5
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.5mediumAV:A/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:Nsecondary · FSTEC (BDU) RU
v3.16.5mediumCVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:Nsecondary · ENISA EU
v3.16.5mediumCVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:Nsecondary · security-advisories@github.comexploitability 1.3 · impact 4.7
v3.16mediumCVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-269USCWE-269US
04

affected products (12)

Products and version ranges known to be affected.

05

advisories (1)

Vendor and ecosystem advisories describing this.

  • BIT-ceph-2025-52555CephFS Permission Escalation Vulnerability in Ceph Fuse mounted FS2026-03-20vendor · osvUS

    Ceph is a distributed object, block, and file storage platform. In versions 17.2.7, 18.2.1 through 18.2.4, and 19.0.0 through 19.2.2, an unprivileged user can escalate to root privileges in a ceph-fuse mounted CephFS by chmod 777 a directory owned by root to gain access. The result of this is that a user could read, write and execute to any directory owned by root as long as they chmod 777 it. This impacts confidentiality, integrity, and availability. It is patched in versions 17.2.8, 18.2.5, and 19.2.3.

06

also known as (4)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bduosvNVDCVE.orgMITRE
published 2025-06-26modified 2026-09-22
08

references (8)

External citations — patches, advisories, analysis.

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