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openplcproject openplc v3 firmware
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openplcproject openplc v3 firmware
11 known vulnerabilities across versions
Vulnerabilities are listed by affected version. Select any CVE for the full briefing and its intelligence graph.
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4.0+
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CVE-2026-35063
all versions
OpenPLC_V3 REST API endpoint checks for JWT presence but never verifies the caller's role. Any authenticated user with role=user c
8.8
HIGH
CVE-2026-35556
all versions
OpenPLC_V3 is vulnerable to a Plaintext Storage of a Password vulnerability that could allow an attacker to retrieve credentials a
7.5
HIGH
CVE-2026-28205
all versions
OpenPLC_V3 is vulnerable to an Initialization of a Resource with an Insecure Default vulnerability which could allow an attacker t
9.8
CRITICAL
CVE-2024-39590
all versions
Multiple invalid pointer dereference vulnerabilities exist in the OpenPLC Runtime EtherNet/IP parser functionality of OpenPLC_v3 1
7.5
HIGH
CVE-2024-39589
all versions
Multiple invalid pointer dereference vulnerabilities exist in the OpenPLC Runtime EtherNet/IP parser functionality of OpenPLC_v3 1
7.5
HIGH
CVE-2024-36981
all versions
An out-of-bounds read vulnerability exists in the OpenPLC Runtime EtherNet/IP PCCC parser functionality of OpenPLC_v3 b4702061dc14
7.5
HIGH
CVE-2024-36980
all versions
An out-of-bounds read vulnerability exists in the OpenPLC Runtime EtherNet/IP PCCC parser functionality of OpenPLC_v3 b4702061dc14
7.5
HIGH
CVE-2024-34026
all versions
A stack-based buffer overflow vulnerability exists in the OpenPLC Runtime EtherNet/IP parser functionality of OpenPLC _v3 b4702061
9.0
CRITICAL
CVE-2024-37741
all versions
OpenPLC 3 through 9cd8f1b allows XSS via an SVG document as a profile picture.
5.4
MEDIUM
CVE-2021-31630
all versions
Command Injection in Open PLC Webserver v3 allows remote attackers to execute arbitrary code via the "Hardware Layer Code Box" com
8.8
HIGH
CVE-2018-20818
all versions
A buffer overflow vulnerability was discovered in the OpenPLC controller, in the OpenPLC_v2 and OpenPLC_v3 versions. It occurs in
9.8
CRITICAL
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