5.5

CVE-2024-56726: linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-56726DEBIAN-CVE-2024-56726
Published 29-12-2024Last modified 11-05-2026

Vulnerability summary

CVE-2024-56726 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.3% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.21%
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 30 · Related 31

Timeline

  1. 29-12-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: octeontx2-pf: handle otx2_mbox_get_rsp errors in cn10k.c Add error pointer check after calling otx2_mbox_get_rsp().

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

0.00 pp

From 0.21% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.21%

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

Ubuntu122 products
  • linux< 5.15.0-135.146 | < 6.8.0-58.60
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1080.87 | < 6.8.0-1027.29
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 2ca89a2c37527221edc549ffd3b65c6f8d9d4088, < a374e7e79fbdd7574bd89344447b0d4b91ba9801 | ≥ 2ca89a2c37527221edc549ffd3b65c6f8d9d4088, < 856ad633e11869729be698df2287ecfe6ec31f27 | ≥ 2ca89a2c37527221edc549ffd3b65c6f8d9d4088, < c5a6c5af434671aea739a5a41c849819144f02c9 | ≥ 2ca89a2c37527221edc549ffd3b65c6f8d9d4088, < 41f39f4c67253f802809310be6846ff408c3c758 | ≥ 2ca89a2c37527221edc549ffd3b65c6f8d9d4088, < 54abcec092616a4d01195355eb5d6036fb8fe363 | ≥ 2ca89a2c37527221edc549ffd3b65c6f8d9d4088, < ac9183023b6a9c09467516abd8aab04f9a2f9564 | 5.14
  • linux_kernel≥ 5.14, < 5.15.174 | ≥ 5.16, < 6.1.120 | ≥ 6.2, < 6.6.64 | ≥ 6.7, < 6.11.11 | ≥ 6.12, < 6.12.2
Debian1 product
  • linux< 6.1.123-1 | < 6.12.3-1

3 vendors · 125 products

References

34 links
Show all 34 references