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CVE-2022-49862

17
FAUCET Score

CVE-2022-49862 is a vulnerability in the Linux kernel's TIPC networking subsystem, specifically affecting the tipc_nl_compat_name_table_dump_header function. This medium-severity vulnerability (CVSS 5.5) is due to an uninitialized value, which could lead to a denial-of-service (DoS) condition (CWE-908) if a local attacker with low privileges exploits it. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.4.172, < 4.5CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.9.152, < 4.9.334CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.14.95, < 4.14.300CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.19.17, < 4.19.267CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20.4, < 5.4.225CPE 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
7.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0018 is in the 40th 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-0:4.18.0-513.5.1.el8_9
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-284.11.1.el9_2
View patch
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-49862Moderate

kernel: tipc: fix the msg->req tlv len check in tipc_nl_compat_name_table_dump_header

May 1, 2025

References

git.kernel.org / stable/c/082707d3df191bf5bb8801d43e4ce3dea39ca173
Patch
git.kernel.org / stable/c/1c075b192fe41030457cd4a5f7dea730412bca40
Patch
git.kernel.org / stable/c/301caa06091af4d5cf056ac8249cbda4e6029c6a
Patch
git.kernel.org / stable/c/36769b9477491a7af6635863bd950309c1e1b96c
Patch
git.kernel.org / stable/c/55a253a6753a603e80b95932ca971ba514aa6ce7
Patch
git.kernel.org / stable/c/6cee2c60bd168279852ac7dbe54c2b70d1028644
Patch
git.kernel.org / stable/c/a0ead1d648df9c456baec832b494513ef405949a
Patch
git.kernel.org / stable/c/f31dd158580940938f77514b87337a777520185a
Patch