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CVE-2022-49595

15
FAUCET Score

CVE-2022-49595 is a data-race vulnerability in the Linux kernel affecting the tcp_probe_threshold sysctl. This flaw occurs because the sysctl value can be modified concurrently while being read, leading to potential inconsistencies. With a CVSS score of 4.7 (Medium), exploitation requires local access and high attack complexity, potentially resulting in a denial of service. There is currently no known active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.1, < 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 2026-07-28
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-2022-49595Moderate

kernel: tcp: Fix a data-race around sysctl_tcp_probe_threshold.

Feb 26, 2025

References

git.kernel.org / stable/c/44768749980d53bc01980d9c060f736808d11af0
Patch
git.kernel.org / stable/c/92c0aa4175474483d6cf373314343d4e624e882a
Patch
git.kernel.org / stable/c/96900fa61777402eb5056269d8000aace33a8b6c
Patch
git.kernel.org / stable/c/9b5dc7ad6da1373d3c60d4b869d688f996e5d219
Patch
git.kernel.org / stable/c/b04817c94fbd285a967d9b830b274fe9998c9c0b
Patch
git.kernel.org / stable/c/d452ce36f2d4c402fa3f5275c9677f80166e7fc6
Patch
git.kernel.org / stable/c/f524c3e7f6cdad66b3b6a912cef47b656f8b0de3
Patch
git.kernel.org / stable/c/fa5fb2cf9393db898772db8cb897ed5fd265eb78
Patch