4.7

CVE-2022-49604: ip: Fix data-races around sysctl_ip_fwd_use_pmtu.

Modified
AliasesUBUNTU-CVE-2022-49604DEBIAN-CVE-2022-49604
Published 26-02-2025Last modified 11-05-2026

Vulnerability summary

CVE-2022-49604 is a medium (CVSS 4.7) vulnerability in linux. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.2% 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
0.19%
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 8 · Related 7
RHSA-2023:2458SUSE-SU-2026:0316-1SUSE-SU-2026:0474-1SUSE-SU-2026:0475-1SUSE-SU-2026:0495-1SUSE-SU-2026:0496-1

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: ip: Fix data-races around sysctl_ip_fwd_use_pmtu. While reading sysctl_ip_fwd_use_pmtu, it can be changed concurrently. Thus, we need to add READ_ONCE() to its readers.

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.19%

Chance of exploitation in the next 30 days

Percentile

8%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.19% 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) | < 4.15.0-197.208 | < 5.4.0-128.144 | < 5.15.0-50.56
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 4.15.0-1143.155 | < 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≥ f87c10a8aa1e82498c42d0335524d6ae7cf5a52b, < eb15262128b793e4b1d1c4514d3e6d19c3959764 | ≥ f87c10a8aa1e82498c42d0335524d6ae7cf5a52b, < 7828309df0f89419a9349761a37c7d1b0da45697 | ≥ f87c10a8aa1e82498c42d0335524d6ae7cf5a52b, < b96ed5ccb09ae71103023ed13acefb194f609794 | ≥ f87c10a8aa1e82498c42d0335524d6ae7cf5a52b, < 93fbc06da1d819f3981a7bd7928c3641ea67b364 | ≥ f87c10a8aa1e82498c42d0335524d6ae7cf5a52b, < e364b5f6ffbfc457a997ad09a7baa16c19581edc | ≥ f87c10a8aa1e82498c42d0335524d6ae7cf5a52b, < 60c158dc7b1f0558f6cadd5b50d0386da0000d50 | 3.14
  • linux_kernel≥ 3.14, < 4.19.254 | ≥ 4.20, < 5.4.208 | ≥ 5.5, < 5.10.134 | ≥ 5.11, < 5.15.58 | ≥ 5.16, < 5.18.15 | 5.19:rc1 | 5.19:rc2 | 5.19:rc3 | 5.19:rc4 | 5.19:rc5 | 5.19:rc6 | 5.19:rc7
Debian1 product
  • linux< 5.18.16-1

3 vendors · 114 products

References

10 links