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CVE-2022-49602

15
FAUCET Score

CVE-2022-49602 is a data-race vulnerability in the Linux kernel's IP networking subsystem, specifically affecting the sysctl_fwmark_reflect variable. This medium-severity vulnerability (CVSS 4.7) can be exploited locally with high attack complexity and low privileges, potentially leading to a denial-of-service condition. There is currently no evidence of active exploitation, public exploit code, or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.16, < 4.9.325CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.10, < 4.14.290CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.15, < 4.19.254CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.20, < 5.4.208CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.5, < 5.10.134CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.7MEDIUM

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.0
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.19%
Probability of exploitation in next 30 days
EPSS Percentile
8.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0019 is in the 44th percentile among its peer group of 1,297 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 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 0.4 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-0:5.14.0-284.11.1.el9_2
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: kernel-rt

Vendor Advisories (1)

redhatCVE-2022-49602Moderate

kernel: ip: Fix a data-race around sysctl_fwmark_reflect.

Feb 26, 2025

References

git.kernel.org / stable/c/0ee76fe01ff3c0b4efaa500aecc90d7c8d3a8860
Patch
git.kernel.org / stable/c/25a635a67c830766110410fea88ec4e6ee29684b
Patch
git.kernel.org / stable/c/5e7a1be3e68deef250ad43cc91f7bb8d7d758b48
Patch
git.kernel.org / stable/c/85d0b4dbd74b95cc492b1f4e34497d3f894f5d9a
Patch
git.kernel.org / stable/c/9096edcf4854289f92252e086cf6e498c7f8c21d
Patch
git.kernel.org / stable/c/a475ecc9ad919aa3ebdd4e4a6ee612b793bf74b3
Patch
git.kernel.org / stable/c/dccf8a67f30e18980d13f07006e5a536bbd1e136
Patch
git.kernel.org / stable/c/fc92e3b4bebfdd986ef1d2c5019f236837b0b982
Patch