4.3

CVE-2024-36845: libmodbus Uncontrolled Resource Consumption

CVSS: 4.3v3.1MediumModified
AliasesUBUNTU-CVE-2024-36845DEBIAN-CVE-2024-36845
Published 31-05-2024Last modified 03-11-2025
Open JSON

Vulnerability summary

CVE-2024-36845 is a medium (CVSS 4.3) Uncontrolled Resource Consumption vulnerability in libmodbus. EPSS estimates a 0.47% chance of exploitation in the next 30 days, higher than 40% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
27/100
0100
Medium · default modelHow is this calculated?
CVSS score
4.3/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.47%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 1
DLA-4084-1

Timeline

  1. 31-05-2024
    PublishedVulnerability first disclosed.
  2. 03-11-2025
    Last modifiedVulnerability information updated.

Description

An invalid pointer in the modbus_receive() function of libmodbus v3.1.6 allows attackers to cause a Denial of Service (DoS) via a crafted message sent to the unit-test-server.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.47%

Chance of exploitation in the next 30 days

Percentile

40%

Versus all other CVEs

30-day change

0.00 pp

From 0.47% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.47%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Libmodbus

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • libmodbus< 3.1.6-2.1
Libmodbus1 product
Ubuntu1 product
  • libmodbusAll versions (No fix recorded)

3 vendors · 3 products

References

5 links