CVE-2025-52555
published 2025-06-26CVE-2025-52555: 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…
PriorityP337medium6.5CVSS 3.1
AVAACHPRLUINSCCHILAN
EPSS
0.17%
6.6th percentile
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.
Affected
9 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| ceph | ceph | — | — |
| ceph | ceph | — | — |
| ceph | ceph | — | — |
| ceph | ceph | >= 0 < 14.2.21-1+deb11u1 | 14.2.21-1+deb11u1 |
| ceph | ceph | >= 0 < 18.2.6-1 | 18.2.6-1 |
| ceph | ceph | >= 0 < 18.2.6-1 | 18.2.6-1 |
| debian | ceph | < ceph 14.2.21-1+deb11u1 (bullseye) | ceph 14.2.21-1+deb11u1 (bullseye) |
| msrc | azl3_ceph_18.2.2-8_on_azure_linux_3.0 | — | — |
| msrc | azl3_ceph_18.2.2-9_on_azure_linux_3.0 | — | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N
osv6.5MEDIUM
vendor_debian6.5MEDIUM
vendor_msrc6.5MEDIUM
vendor_redhat6.5MEDIUM
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Red Hat
ceph: privilege escalation by unprivileged users in a ceph-fuse mounted CephFS
vendor_redhat·2025-06-26·CVSS 6.5
CVE-2025-52555 [MEDIUM] CWE-272 ceph: privilege escalation by unprivileged users in a ceph-fuse mounted CephFS
ceph: privilege escalation by unprivileged users in a ceph-fuse mounted CephFS
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.
A vulnerability in Ceph was discovered whereby an unprivileged user could change the permissions of a directory owned by the root user, gaining access to the targeted directory. The non-privileged user can esc
Microsoft
CephFS Permission Escalation Vulnerability in Ceph Fuse mounted FS
vendor_msrc·2025-06-10·CVSS 6.5
CVE-2025-52555 [MEDIUM] CWE-269 CephFS Permission Escalation Vulnerability in Ceph Fuse mounted FS
CephFS Permission Escalation Vulnerability in Ceph Fuse mounted FS
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
GitHub_M: GitHub_M
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Referen
Debian
CVE-2025-52555: ceph - Ceph is a distributed object, block, and file storage platform. In versions 17.2...
vendor_debian·2025·CVSS 6.5
CVE-2025-52555 [MEDIUM] CVE-2025-52555: ceph - Ceph is a distributed object, block, and file storage platform. In versions 17.2...
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.
Scope: local
bookworm: open
bullseye: resolved (fixed in 14.2.21-1+deb11u1)
forky: resolved (fixed in 18.2.6-1)
sid: resolved (fixed in 18.2.6-1)
trixie: resolved (fixed in 18.2.6-1)
OSV
CVE-2025-52555: Ceph is a distributed object, block, and file storage platform
osv·2025-06-26·CVSS 6.5
CVE-2025-52555 [MEDIUM] CVE-2025-52555: Ceph is a distributed object, block, and file storage platform
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.
No detection rules found.
No public exploits indexed.
2025-06-26
Published