4.7

CVE-2022-49639: cipso: Fix data-races around sysctl.

Modified
AliasesUBUNTU-CVE-2022-49639DEBIAN-CVE-2022-49639
Published 26-02-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-49639 is a medium (CVSS 4.7) vulnerability in linux. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 7.4% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 4.7, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
4.7/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.18%
0%100%
Low · 0.00 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 2
RHSA-2023:2458RHSA-2023:7077

Timeline

  1. 26-02-2025
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: cipso: Fix data-races around sysctl. While reading cipso sysctl variables, they can be changed concurrently. So, we need to add READ_ONCE() to avoid data-races.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.18%

Chance of exploitation in the next 30 days

Percentile

7%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.18% 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: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu111 products
  • linuxAll versions (No fix recorded) | < 4.15.0-194.205 | < 5.4.0-128.144 | < 5.15.0-50.56
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 4.15.0-1142.154 | < 5.4.0-1086.93 | < 5.15.0-1021.25
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 446fda4f26822b2d42ab3396aafcedf38a9ff2b6, < 2764f82bbc158d106693ae3ced3675cf4b963b35 | ≥ 446fda4f26822b2d42ab3396aafcedf38a9ff2b6, < c321e99d2725d11f7e6a4ebd9ce752259f0bae81 | ≥ 446fda4f26822b2d42ab3396aafcedf38a9ff2b6, < ca26ca5e2f3eeb3e6fe699cd6effa3b4b2aa8698 | ≥ 446fda4f26822b2d42ab3396aafcedf38a9ff2b6, < 0e41a0f73ccb9be112a80bde3804a771633caaef | ≥ 446fda4f26822b2d42ab3396aafcedf38a9ff2b6, < fe2a35fa2c4f9c8ce5ef970eb927031387f9446a | ≥ 446fda4f26822b2d42ab3396aafcedf38a9ff2b6, < 07b0caf8aeb9b82e6ecc6c292a3e47c7fcdb1148 | ≥ 446fda4f26822b2d42ab3396aafcedf38a9ff2b6, < 59e26906b89cc35bb54476498772b45cbc32323f | ≥ 446fda4f26822b2d42ab3396aafcedf38a9ff2b6, < dd44f04b9214adb68ef5684ae87a81ba03632250 | 2.6.19
  • linux_kernel≥ 2.6.19, < 4.9.324 | ≥ 4.10, < 4.14.289 | ≥ 4.15, < 4.19.253 | ≥ 4.20, < 5.4.207 | ≥ 5.5, < 5.10.132 | ≥ 5.11, < 5.15.56 | ≥ 5.16, < 5.18.13 | 5.19:rc1 | 5.19:rc2 | 5.19:rc3 | 5.19:rc4 | 5.19:rc5 | 5.19:rc6
Debian1 product
  • linux< 5.18.14-1

3 vendors · 114 products

References

12 links
Show all 12 references