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CVE-2022-49710

17
FAUCET Score

CVE-2022-49710 is a Linux kernel vulnerability in the dm-log component, specifically affecting the device mapper mirror log. The flaw stems from incorrect bitmap size calculation, leading to potential out-of-bounds memory access on 64-bit architectures. Rated Medium (CVSS 5.5), this local vulnerability (AV:L/AC:L/PR:L) could result in a denial of service (A:H) without requiring user interaction. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.6.18, < 5.4.200CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.124CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.49CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.18.6CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
5.19CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*

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
0.28%
Probability of exploitation in next 30 days
EPSS Percentile
20.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0028 is in the 76th 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

Patch Available

Vendor Patches (3)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: kernel-0:4.18.0-425.3.1.el8
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-162.6.1.el9_1
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-49710Moderate

kernel: dm mirror log: round up region bitmap size to BITS_PER_LONG

Feb 26, 2025

References

git.kernel.org / stable/c/0d2209b54f1de0c2f99cab246d4cf2cfe24aaaa9
Patch
git.kernel.org / stable/c/85e123c27d5cbc22cfdc01de1e2ca1d9003a02d0
Patch
git.kernel.org / stable/c/9a02f3275acc628c0d956be771405ced79ac36df
Patch
git.kernel.org / stable/c/ae460312875159285cef5bf3dc654593f404a1ef
Patch
git.kernel.org / stable/c/ba751f0d25f07aa21ce9b85372a3792bf7969d13
Patch