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CVE-2022-49598

15
FAUCET Score

CVE-2022-49598 is a data race vulnerability in the Linux kernel's TCP stack, specifically affecting the sysctl_tcp_mtu_probing variable. This flaw allows for concurrent modification and reading of the variable, requiring READ_ONCE() to prevent race conditions. Rated Medium (CVSS 4.7), it requires local access with low privileges and high attack complexity, potentially leading to a denial of service. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.6.17, < 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:*:*:*:*:*:*:*:*
>= 5.11, < 5.15.58CPE matchmatch criteria
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
>= 5.16, < 5.18.15CPE 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-2022-49598Moderate

kernel: tcp: Fix data-races around sysctl_tcp_mtu_probing.

Feb 26, 2025

References

git.kernel.org / stable/c/77a04845f0d28a3561494a5f3121488470a968a4
Patch
git.kernel.org / stable/c/7e8fc428a7f680f1c4994a40e52d7f95a9a93038
Patch
git.kernel.org / stable/c/aabe9438fdfe004e021d5a206227ec105dbe2416
Patch
git.kernel.org / stable/c/b0920ca09d9ce19980c8391b9002455baa9c1417
Patch
git.kernel.org / stable/c/f47d00e077e7d61baf69e46dde3210c886360207
Patch
git.kernel.org / stable/c/f966773e13cdd3f12baa90071b7b660f6c633ccb
Patch