CVE-2026-28205
Initialization of a resource with an insecure default in OpenPLC_V3
OpenPLC_V3 is vulnerable to an Initialization of a Resource with an Insecure Default vulnerability which could allow an attacker to gain access to the system by bypassing authentication via an API.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Initialization of a resource with an insecure default in OpenPLC_V3
OpenPLC_V3 is vulnerable to an Initialization of a Resource with an Insecure Default vulnerability which could allow an attacker to gain access to the system by bypassing authentication via an API.
- Record
CVE-2026-28205- CVSS 4.0
- 9.2 Critical
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H - Weakness
- CWE-1188
- Updated
- 2026-11-02
EUVDEUVD-2026-21009
OpenPLC_V3 is vulnerable to an Initialization of a Resource with an Insecure Default vulnerability which could allow an attacker to gain access to the system by bypassing authentication via an API.
- Record
EUVD-2026-21009- CVSS 4.0
- 9.2 Critical
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-3r9q-7hff-7fm4
OpenPLC_V3 is vulnerable to an Initialization of a Resource with an Insecure Default...
OpenPLC_V3 is vulnerable to an Initialization of a Resource with an Insecure Default vulnerability which could allow an attacker to gain access to the system by bypassing authentication via an API.
- Record
GHSA-3r9q-7hff-7fm4- CVSS 4.0
- 9.2 Critical
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1188
- Updated
- 2026-11-02
NVD
OpenPLC_V3 is vulnerable to an Initialization of a Resource with an Insecure Default vulnerability which could allow an attacker to gain access to the system by bypassing authentication via an API.
- Record
CVE-2026-28205- CVSS 4.0
- 9.2 Critical
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 9.8 Critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-1188
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-28205 is a critical vulnerability (CVSS 9.2) in Openplc V3 V3, published April 9, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.46%, the 39th percentile. No source names a fixed version.