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CVE-2022-49596

15
FAUCET Score

CVE-2022-49596 is a data-race vulnerability in the Linux kernel's TCP implementation, specifically concerning the sysctl_tcp_min_snd_mss parameter. Rated Medium (CVSS 4.7), it requires local access and high attack complexity, potentially leading to a denial of service. There is currently no public exploit code available, and it has garnered minimal community discussion or media coverage, indicating a low exploitation risk at this time.

Impacted Technologies

VendorProductVersion(s)CPE
>= 3.16.69, < 3.17CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.4.182, < 4.5CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.9.182, < 4.10CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.14.127, < 4.15CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 4.19.52, < 4.20CPE 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
0.18%
Probability of exploitation in next 30 days
EPSS Percentile
8.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0019 is in the 43rd 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-2022-49596Moderate

kernel: tcp: Fix data-races around sysctl_tcp_min_snd_mss.

Feb 26, 2025

References

git.kernel.org / stable/c/0d8a39feb58910a7f7746b1770ee5578cc551fe6
Patch
git.kernel.org / stable/c/0fc9357282df055e30990b29f4b7afa53ab42cdb
Patch
git.kernel.org / stable/c/78eb166cdefcc3221c8c7c1e2d514e91a2eb5014
Patch
git.kernel.org / stable/c/97992e8feff33b3ae154a113ec398546bbacda80
Patch
git.kernel.org / stable/c/fdb96b69f5909ffcdd6f1e0902219fc6d7689ff7
Patch