Out-of-bounds Read in Libplctag

CVE-2025-1400

Out-of-bounds Read vulnerability in unpack_response (conn.c) in libplctag from 2.0 through 2.6.3 allows Overread Buffers via network.

Vulnerability class: Buffer Overflow

EPSS: 0.002 (12.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

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

Affected products

Libplctag — versions 2.0

Weakness classification (CWE)

CWE-125 — Out-of-bounds Read

References

prodsec@nozominetworks.com

Frequently asked questions

What is CVE-2025-1400?: CVE-2025-1400 is a low-severity vulnerability in Libplctag, classified under Out-of-bounds Read. CVSS score: 3.1/10. Published 2025-05-07.
How severe is CVE-2025-1400?: Low severity. CVSS v3 base score is 3.1 out of 10.