CVE-2026-9758
Improper Certificate Validation in S2OPC
HIGH
7.3
CVSS Score
Published: June 10, 2026 at 12:32 PM UTC
Updated: October 26, 2026 at 11:10 AM UTC
1 product affected across 1 vendorS2OPC
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Severity
HIGH7.3
Exploit prediction
EPSS 0.1%
SSVC
No known exploit
Description
Improper comparison with the certificates trusted list in S2OPC allows an attacker well-formed untrusted certificate to be considered trusted
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
1.5.0 ≤ v < 1.7.31.5.0
Affected range stops below 1.7.3, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.
References (1)
Source: cverecord
https://gitlab.com/systerel/S2OPC/-/work_items/1770SSVC — Action Prioritization
SSVCNo known exploitAutomatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
7.3HIGHGitLab
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- LOW
- Integrity
- LOW
- Availability
- LOW
Vector?
Quick Info
StatusDEFERRED
CWE
CWE-295
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