🛡️ CVE-2026-31156
🟡 CVSS 6.5 — Medium ⚠️ Exploit Public CWE-22 NVD
6.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A path injection vulnerability exists in OpenPLC v3 (2c82b0e79c53f8c1f1458eee15fec173400d6e1a) as the binary program compiled from glue_generator.cpp does not perform any validation on the file path parameters passed via the command line. The user-controlled input parameters are directly passed to the underlying file operation functions (fopen/ifstream/ofstream) for file reading and writing. An attacker can exploit this vulnerability by constructing a malicious path to read arbitrary readable files.

Details

Severity MEDIUM
CVSS Score 6.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE CWE-22
Public Exploit ⚠️ Yes
Source NVD
Published 2026-05-13
Updated 2026-06-02
Modified 2026-05-26
Fix URL N/A

Affected Packages

Software From version Fixed in
openplc-v3-firmware — —
unknown — —

References

Exploit, Third Party Advisory https://github.com/unicorn-hyh/CVE-2026-31156
Exploit, Third Party Advisory https://github.com/unicorn-hyh/CVE-2026-31156

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