7.1

CVE-2022-3566: Linux Kernel TCP tcp_setsockopt race condition

Analyzed
AliasesUBUNTU-CVE-2022-3566DEBIAN-CVE-2022-3566CGA-22xx-8g8j-pq83
Published 17-10-2022Last modified 30-07-2026

Vulnerability summary

CVE-2022-3566 is a high (CVSS 7.1) vulnerability in linux kernel. EPSS estimates a 0.74% chance of exploitation in the next 30 days, higher than 54.7% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 2.1, adjacent network); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.1/10
010
High · v3.1 (NVD)
EPSS score
0.74%
0%100%
Low · +0.05 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 30 · Related 26
RHSA-2023:2148RHSA-2023:2458RHSA-2023:2736RHSA-2023:2951RHSA-2024:0724SUSE-SU-2022:4504-1

Timeline

  1. 17-10-2022
    PublishedVulnerability first disclosed.
  2. 30-07-2026
    Last modifiedVulnerability information updated.

Description

A vulnerability was identified in Linux Kernel up to 4.19.316/5.4.278/5.10.220/5.15.161. This impacts the function tcp_getsockopt/tcp_setsockopt of the component TCP Handler. Such manipulation leads to race condition. A high complexity level is associated with this attack. The exploitability is said to be difficult. The vulnerability was introduced in 2.6.12, commit 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ("Linux-2.6.12-rc2"). Upgrading to version 4.19.317, 5.4.279, 5.10.221, 5.15.162 and 6.1 will fix this issue. The name of the patch is fcd31dd8291b23d713245947ec2b2d99ef07aef2/3b32f265805a49071e2c4568a524398ba22bf93c/d529193eae979a7bf2255cd9fe68b7af7a1c91b3/5bb642cc3355ffd3c8bca0a8bd8e6e65bcc2091c/f49cd2f4d6170d27a2c61f1fecb03d8a70c91f57. The affected component should be upgraded.

CVSS metrics

11 scores · 5 sources · 4 versions

EPSS trend

Probability

0.74%

Chance of exploitation in the next 30 days

Percentile

55%

Versus all other CVEs

30-day change

Increase +0.05 pp

From 0.70% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: adjacent network, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu85 products
  • linuxAll versions (No fix recorded) | < 4.4.0-235.269 | < 4.15.0-200.211 | < 5.4.0-135.152 | < 5.15.0-56.62
  • linux-aws< 4.4.0-1114.120 | < 4.4.0-1152.167 | < 4.15.0-1146.158 | < 5.4.0-1092.100 | < 5.15.0-1026.30
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
  • linux-aws-5.13All versions (No fix recorded)
Chainguard52 products
  • hyperv-daemons-6.18All versions (No fix recorded)
  • hyperv-daemons-genericAll versions (No fix recorded)
  • linux-aws-6.12< 6.12.65-r0 | All versions (No fix recorded)
  • linux-aws-6.12-boot-installedAll versions (No fix recorded)
  • linux-aws-6.12-fips-boot-installedAll versions (No fix recorded)
Linux2 products
  • kernel4.19.316 | 5.4.278 | 5.10.220 | 5.15.161
  • linux_kernel≥ 2.6.12, < 4.19.317 | ≥ 4.20, < 5.4.279 | ≥ 5.5, < 5.10.221 | ≥ 5.11, < 5.15.162
Debian1 product
  • linux< 6.1.4-1

4 vendors · 140 products

References

24 links
Show all 24 references