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CVE-2022-49743

17
FAUCET Score

CVE-2022-49743 is a vulnerability in the Linux kernel's overlayfs module, specifically related to an incorrect memcpy() destination that could trigger a FORTIFY_SOURCE warning. Rated Medium (CVSS 5.5), this local vulnerability requires low privileges and has a high impact on availability, potentially leading to system crashes. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 5.15.93CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 6.1.11CPE 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
0.18%
Probability of exploitation in next 30 days
EPSS Percentile
7.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0018 is in the 41st 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 (2)

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 (1)

redhatCVE-2022-49743Moderate

kernel: ovl: Use "buf" flexible array for memcpy() destination

Mar 27, 2025

References

git.kernel.org / stable/c/012cdef22000f3104e4fa8224ad29fde509b8caf
git.kernel.org / stable/c/07a96977b2f462337a9121302de64277b8747ab1
Patch
git.kernel.org / stable/c/a77141a06367825d639ac51b04703d551163e36c
Patch
git.kernel.org / stable/c/cf8aa9bf97cadf85745506c6a3e244b22c268d63
Patch