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CVE-2022-49574

15
FAUCET Score

CVE-2022-49574 addresses a data-race vulnerability in the Linux kernel's TCP recovery mechanism, specifically affecting the reading of sysctl_tcp_recovery. This medium-severity flaw (CVSS 4.7) could lead to a denial of service (availability impact) under specific conditions, requiring low privileges and high attack complexity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.4, < 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-2022-49574Moderate

kernel: tcp: Fix data-races around sysctl_tcp_recovery.

Feb 26, 2025

References

git.kernel.org / stable/c/52ee7f5c4811ce6be1becd14d38ba1f8a8a0df81
Patch
git.kernel.org / stable/c/92c35113c63306091df9211375eebd0abd8c2160
Patch
git.kernel.org / stable/c/a31e2d0cb5cfa2aae3144cac04f25031d5d20fb4
Patch
git.kernel.org / stable/c/c7a492db1f7c37c758a66915908677bd8bc5d368
Patch
git.kernel.org / stable/c/d8781f7cd04091744f474a2bada74772084b9dc9
Patch
git.kernel.org / stable/c/e7d2ef837e14a971a05f60ea08c47f3fed1a36e4
Patch