CVE-2026-28205 | OpenPLC v3 API insecure default initialization of resource (icsa-25-345-10)

VDB-356658 · CVE-2026-28205 · ICSA-25-345-10 OPENPLC V3 API INSECURE DEFAULT INITIALIZATION OF RESOURCE HISTORYDIFFRELATEJSONXMLCTI CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score 9.1 $0-$5k 0.53 Summaryinfo A vulnerability categorized as very critical has been discovered in OpenPLC v3. Impacted is an unknown function of the component API. The manipulation results in insecure default initialization of resource. This vulnerability was named CVE-2026-28205. The attack may be performed from remote. There is no available exploit. Detailsinfo A vulnerability was found in OpenPLC v3 (affected version unknown). It has been classified as very critical. Affected is an unknown functionality of the component API. The manipulation with an unknown input leads to a insecure default initialization of resource vulnerability. CWE is classifying the issue as CWE-1188. The product initializes or sets a resource with a default that is intended to be changed by the administrator, but the default is not secure. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes: 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. The weakness was presented by Shriyans Sudhi as icsa-25-345-10. The advisory is available at cisa.gov. This vulnerability is traded as CVE-2026-28205 since 04/06/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/09/2026). There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Productinfo Name OpenPLC v3 CPE 2.3info 🔒 CPE 2.2info 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CNA CVSS-B Score: 🔒 CNA CVSS-BT Score: 🔒 CNA Vector: 🔒 CVSSv3info VulDB Meta Base Score: 9.4 VulDB Meta Temp Score: 9.1 VulDB Base Score: 9.4 VulDB Temp Score: 9.1 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Insecure default initialization of resource CWE: CWE-1188 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: no mitigation known Status: 🔍 0-Day Time: 🔒 Timelineinfo 04/06/2026 CVE reserved 04/09/2026 +3 days Advisory disclosed 04/09/2026 +0 days VulDB entry created 04/09/2026 +0 days VulDB entry last update Sourcesinfo Advisory: icsa-25-345-10 Researcher: Shriyans Sudhi Status: Not defined CVE: CVE-2026-28205 (🔒) GCVE (CVE): GCVE-0-2026-28205 GCVE (VulDB): GCVE-100-356658 Entryinfo Created: 04/09/2026 22:01 Changes: 04/09/2026 22:01 (64) Complete: 🔍 Cache ID: 99:F5F:101 Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸