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CVE-2022-48628

17
FAUCET Score

CVE-2022-48628 is a vulnerability in the Linux kernel's Ceph filesystem module. During unmounting, if encryption is enabled, the kernel may generate a warning and subsequently crash due to improper handling of inode references and keyring destruction. This issue affects Linux kernel versions. The vulnerability has a CVSS score of 5.5 (Medium), indicating a local attack vector with low complexity, requiring local privileges, and leading to high availability impact (system crash). There is no confidentiality or integrity impact. There is currently no evidence of active exploitation, and no public exploit code (Metasploit, Nuclei, ExploitDB) is available. Community discussion and media coverage are minimal, suggesting low public awareness or attention to this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 6.1.56CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 6.2, < 6.5.6CPE 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
0.24%
Probability of exploitation in next 30 days
EPSS Percentile
14.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0024 is in the 65th 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

No media coverage found for this CVE.

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

Remediation

Vendor Patches (4)

redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-rt
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (2)

microsoft2024-Mar/CVE-2022-48628Moderate

ceph: drop messages from MDS when unmounting

Mar 12, 2024
redhatCVE-2022-48628Low

kernel: ceph: drop messages from MDS when unmounting

Mar 2, 2024

References

git.kernel.org / stable/c/47f82395f04a976d4fa97de7f2acffa1c1096571
Patch
git.kernel.org / stable/c/89744b64914426cbabceb3d8a149176b5dafdfb5
Patch
git.kernel.org / stable/c/e3dfcab2080dc1f9a4b09cc1327361bc2845bfcd
Patch