Out-of-bounds Read in Libplctag

CVE-2025-1399

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

Vulnerability class: Buffer Overflow

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.002 (12.8th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 12.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-1399: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2025-1399?
CVE-2025-1399 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-2025-1399?
Low severity. CVSS v3 base score is 3.1 out of 10.