CVE-2025-7390 | Bypass the client certificate trust check of an opc.https server while only secure communication is allowed

A malicious client can bypass the client certificate trust check of an opc.https server when the server endpoint is configured to allow only secure communication.

Published: 2025-08-21 Last update: 2026-04-15 Assigner: 10de8ef9-5c89-4b17-8228-e97b74acf4bd Source: 10de8ef9-5c89-4b17-8228-e97b74acf4bd
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-7390 is rated Low Risk (37.3/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.02%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-7390

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-08-21 — 0.02% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-7390

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.1 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 5.2 10de8ef9-5c89-4b17-8228-e97b74acf4bd

Weakness enumeration for CVE-2025-7390

Affected software / configurations for CVE-2025-7390

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2025-7390

cvelogic Threat Intelligence