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CVE-2018-16846

23
FAUCET Score

CVE-2018-16846 is a denial-of-service vulnerability affecting Ceph versions prior to 13.2.4, specifically impacting the RGW component and its OMAPs holding bucket indices. This medium-severity flaw (CVSS 6.5) can be exploited by authenticated users over the network with low attack complexity, leading to high availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 13.2.4CPE matchmatch criteria
cpe:2.3:a:redhat:ceph:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
15.0CPE matchmatch criteria
cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
2.0CPE matchmatch criteria
cpe:2.3:a:redhat:ceph_storage:2.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
2.14%
Probability of exploitation in next 30 days
EPSS Percentile
80.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0214 is in the 92nd percentile among its peer group of 21,958 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (10)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ceph Storage 3.3Fixed in: ceph-2:12.2.12-45.el7cp
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ceph Storage 3.3Fixed in: ceph-ansible-0:3.2.24-1.el7cp
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ceph Storage 3.3Fixed in: ceph-iscsi-config-0:2.6-19.el7cp
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ceph Storage 3.3Fixed in: cephmetrics-0:2.0.6-1.el7cp
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ceph Storage 3.3Fixed in: libntirpc-0:1.7.4-1.el7cp
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ceph Storage 3.3Fixed in: nfs-ganesha-0:2.7.4-10.el7cp
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ceph Storage 3.3Fixed in: python-crypto-0:2.6.1-16.el7ost
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Ceph Storage 3 for UbuntuFixed in: ceph
View patch
redhatend of lifevia redhat_api
Product: Red Hat Ceph Storage 2Fixed in: ceph

Vendor Advisories (1)

redhatCVE-2018-16846Moderate

ceph: ListBucket max-keys has no defined limit in the RGW codebase

Jan 7, 2019

References

lists.opensuse.org / opensuse-security-announce/2019-04/msg00100.html
Mailing ListThird Party Advisory
access.redhat.com / errata/RHSA-2019:2538
Third Party Advisory
access.redhat.com / errata/RHSA-2019:2541
Third Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingPatchThird Party Advisory
ceph.com / releases/13-2-4-mimic-released
Vendor Advisory
lists.debian.org / debian-lts-announce/2019/03/msg00002.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2021/08/msg00013.html
Mailing ListThird Party Advisory
usn.ubuntu.com / 4035-1
Third Party Advisory