5.5

CVE-2024-26677: linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2024-26677DEBIAN-CVE-2024-26677
Published 02-04-2024Last modified 11-05-2026

Vulnerability summary

CVE-2024-26677 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.2% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.24%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 28 · Related 28

Timeline

  1. 02-04-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix delayed ACKs to not set the reference serial number Fix the construction of delayed ACKs to not set the reference serial number as they can't be used as an RTT reference.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

0.00 pp

From 0.24% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.24%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu116 products
  • linuxAll versions (No fix recorded) | < 4.4.0-259.293 | < 4.15.0-229.241 | < 5.4.0-196.216 | < 5.15.0-122.132
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 4.4.0-1136.142 | < 4.4.0-1174.189 | < 4.15.0-1173.186 | < 5.4.0-1133.143 | < 5.15.0-1070.76
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 17926a79320afa9b95df6b977b40cca6d8713cea, < 200cb50b9e154434470c8969d32474d38475acc2 | ≥ 17926a79320afa9b95df6b977b40cca6d8713cea, < 63719f490e6a89896e9a463d2b45e8203eab23ae | ≥ 17926a79320afa9b95df6b977b40cca6d8713cea, < e7870cf13d20f56bfc19f9c3e89707c69cf104ef | 2.6.22
  • linux_kernel≥ 2.6.22, < 6.6.17 | ≥ 6.7, < 6.7.5 | 6.8:rc1 | 6.8:rc2 | 6.8:rc3
Debian1 product
  • linuxAll versions (No fix recorded) | < 6.7.7-1

3 vendors · 119 products

References

24 links
Show all 24 references