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CVE-2022-49732

17
FAUCET Score

CVE-2022-49732 is a medium-severity vulnerability in the Linux kernel affecting the socket (sock) component. It stems from an incorrect protection check during the initialization of psocks, which can lead to a loop in ULP (Upper Layer Protocol) callbacks if a ULP is already present. This local vulnerability (AV:L) has low attack complexity (AC:L) and requires low privileges (PR:L), potentially causing a denial of service (A:H). 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
>= 5.13, < 5.15.51CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.18.8CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
5.19CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:*
5.19CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:*
5.19CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:*

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
0.20%
Probability of exploitation in next 30 days
EPSS Percentile
10.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0020 is in the 49th 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-0:4.18.0-477.10.1.el8_8
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-2022-49732Moderate

kernel: sock: redo the psock vs ULP protection check

Feb 26, 2025

References

git.kernel.org / stable/c/72fa0f65b56605b8a9ae9fba2082f2123f7fe017
Patch
git.kernel.org / stable/c/922309e50befb0cfa5cb65e4989b7706d6578846
Patch
git.kernel.org / stable/c/e34a07c0ae3906f97eb18df50902e2a01c1015b6
Patch