What is CVE-2024-34244?

CVE-2024-34244 is a high-severity vulnerability in Libmodbus, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2024-05-08.

How severe is CVE-2024-34244?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2024-34244 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Buffer overflow in Libmodbus

CVE-2024-34244

libmodbus v3.1.10 is vulnerable to Buffer Overflow via the modbus_write_bits function. This issue can be triggered when the function is fed with specially crafted input, which leads to out-of-bounds read and can potentially cause a crash or other unintended behaviors.

Vulnerability class: Buffer Overflow

EPSS: 0.005 (41.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Libmodbus — versions 3.1.10
N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

cve@mitre.org (Exploit, Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2024-34244?: CVE-2024-34244 is a high-severity vulnerability in Libmodbus, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2024-05-08.
How severe is CVE-2024-34244?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2024-34244 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.