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CVE-2025-52555

CephFS Permission Escalation Vulnerability in Ceph Fuse mounted FS

Published: Jun 26, 2025Updated: Nov 3, 2025 Sources: CVE List NVD BDUCWE-269
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.2%
Top 93.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:AAC:HPR:LUI:NS:CC:HI:LA:N
Exploitability
AV:AAttack Vector
Adjacent
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:LIntegrity
Low
A:NAvailability
None
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Weaknesses

CWE-269

Affected Products

cephceph
On-prem
Hardware Firmware / storage-nas
CephСообщество свободного программного обеспечения
On-premDatabase
Databases / nosql
Platform V SberLinux OS ServerАО «СберТех»
On-premOS
Operating Systems / linux-distro
cephoss-projectHardware Firmware
сообщество свободного программного обеспеченияoss-projectOperating Systemsaka сообщество свободного программного обеспечения, fsf
ао «сбертех»commercialRUOperating Systemsaka ao sbertech, сбертех

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://github.com/ceph/ceph/security/advisories/GHSA-89hm-qq33-2fjm
github.com
https://github.com/ceph/ceph/pull/60314
github.com
https://lists.debian.org/debian-lts-announce/2025/09/msg00025.html
lists.debian.org

Timeline

Published
Jun 26, 2025
Last Updated
Nov 3, 2025

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