48/100 CVSS 8.1 🔴 CVE ANALYSISPublished: May 15, 2026

epa4all-client: TLS Certificate Validation Disabled in Production

### Impact An attacker on the network path between the ePA service and the Konnektor can present any TLS certificate (self-signed, expired, wrong CN) and intercept all SOAP traffic. This includes patient identifiers (KVNR), SMC-B card operations (authentication, signing), document content, and credential exchanges. ### Patches [#36](https://github....

8.1

CVSS Score

MEDIUM

Threat Level

Priority /100

TBD

Exploited ITW

Monitor

CISA Status

Sources

🔵

HIGH-PRIORITY SECURITY ADVISORY — Priority Score: 48/100

CVSS 8.1 MEDIUM. SENTINEL APEX recommends immediate patch evaluation. Intelligence from 1 confirmed source(s).

📋 Executive Summary

⚡ Analyst Assessment — SENTINEL APEX v4.0

This report analyzes CVE-2026-45574 affecting maven com.oviva.telematik:epa4all-client. Composite threat score: 48/100. Intelligence corroborated across 1 source(s): github_advisories. CVSS base score: 8.1. No confirmed in-the-wild exploitation at the time of writing; prioritize on exposure, privilege, and CVSS.

Intelligence sources: github_advisories

⚠️ Business Impact Analysis

⚠️ Remote code execution — full server takeover without authentication possible

🔗 Representative Attack Path

A typical attack path for this vulnerability class, mapped to MITRE ATT&CK — a representative model to guide detection and defense, not a claim of observed activity against a specific target. Confirm specifics against the primary sources below.

#	Phase	Attacker Action	MITRE
1	Reconnaissance	Attacker identifies exposed com.oviva.telematik:epa4all-client instances via Shodan, Censys, or targeted scanning	`TA0043`
2	Initial Access	Exploitation of CVE-2026-45574 in maven com.oviva.telematik:epa4all-client	`T1190`
3	Execution	Remote code execution achieved — attacker runs arbitrary commands on target system	`T1203`
4	Persistence	Backdoor, scheduled task, or new admin account created for persistent access	`T1053`
5	Command & Control	Attacker establishes persistent C2 channel using HTTPS or DNS tunneling	`T1071`
6	Impact / Objectives	Intellectual property theft, espionage, cryptomining, or preparation for future attack stage	`T1657`

⚠ Deep Dive Analysis

This high-severity vulnerability in maven com.oviva.telematik:epa4all-client (CVSS 8.1) represents a significant attack surface. SENTINEL APEX assesses exploitation to be technically feasible with moderate effort. Organizations running com.oviva.telematik:epa4all-client in internet-facing or privileged positions face immediate risk.

SENTINEL APEX URGENCY: HIGH. Score: 48/100 MEDIUM. Patch before exploitation activity begins.

🎯 MITRE ATT&CK Mapping

Category	Mapping
Primary Tactic	Execution
Primary Technique	T1203 — Exploitation for Client Execution
Sub-Technique	T1059 — Command & Scripting Interpreter
Weakness (CWE)	CWE-295
Intel Type	🔴 CVE ANALYSIS
Source(s)	github_advisories

🔴 CVE Reference

CVE ID	Reference	Score
CVE-2026-45574	NVD →	8.1
CVE-2026-45574	NVD →	8.1

🏷️ Indicators of Compromise — Enriched IOC Feed

Normalized IOCs with confidence scoring. Block immediately across all enforcement points. SOC Pro subscribers receive enriched IOC bundles with full attribution and STIX/TAXII feeds.

Indicator Value	Type	Confidence	First Seen
https://github.com/oviva-ag/epa4all-client/pull/36)	url	82%	2026-05-15
https://machinespirits.com/)	url	82%	2026-05-15
machinespirits.com	domain	75%	2026-05-15

🔍 Detection Rules — Sigma (SIEM)

Deploy to Splunk, Elastic, Microsoft Sentinel, or QRadar. SOC Pro subscribers receive pre-compiled SIEM-native query packs updated with each pipeline run.

Sigma YAMLtitle: CVE-2026-45574 Exploitation Attempt — maven com.oviva.telematik:epa4all-client
id: fe8eae0e61a224df-5d35
status: experimental
description: Detects exploitation of CVE-2026-45574 in maven com.oviva.telematik:epa4all-client. Priority: MEDIUM. Score: 48/100
author: CYBERDUDEBIVASH SENTINEL APEX v4.0 (bivash@cyberdudebivash.com)
date: 2026-05-15
references:
    - https://nvd.nist.gov/vuln/detail/CVE-2026-45574
    - https://blog.cyberdudebivash.in/
tags:
    - attack.initial_access
    - attack.t1190
    - cve-2026-45574
    - cve-2026-45574
logsource:
    category: webserver
detection:
    keywords:
        - 'CVE-2026-45574'
        - 'CVE-2026-45574'
        - 'cve-2026-45574'
    condition: keywords
falsepositives:
    - Security scanners
level: high

📡 Detection Rules — YARA (Endpoint)

Deploy to endpoint detection platforms. Enterprise subscribers receive tuned, FP-validated YARA rule packs.

YARArule CVE_2026_45574_Exploitation {
    meta:
        description = "Detects artifacts related to CVE-2026-45574 exploitation in maven com.oviva.telematik:epa4all-client"
        author      = "CYBERDUDEBIVASH SENTINEL APEX v4.0"
        date        = "2026-05-15"
        severity    = "HIGH"
        cvss        = "8.1"
        priority    = "48/100"
        threat_level = "MEDIUM"
        reference   = "https://nvd.nist.gov/vuln/detail/CVE-2026-45574"
    strings:
        $id_str  = "CVE-2026-45574" ascii nocase
        $product = "com_oviva_telematik_epa4all_client" ascii nocase wide
    condition:
        any of them
}

🛡️ SOC Response Playbook

1IMMEDIATE (0-1hr): Identify all instances of com.oviva.telematik:epa4all-client in your environment via CMDB/asset inventory
2IMMEDIATE: Block all 3 IOCs in this report at firewall, proxy, DNS, and EDR simultaneously
3IMMEDIATE (0-1hr): Apply vendor patch — no maintenance window exception for MEDIUM threats
4IMMEDIATE (1-2hr): If no patch available: implement WAF rules, ACLs, or network-level compensating controls
5SHORT-TERM (2-4hr): Deploy Sigma detection rule to SIEM — validate alert generation in test environment
6SHORT-TERM (4-8hr): Review logs for exploitation indicators (anomalous com.oviva.telematik:epa4all-client requests, error spikes)
7SHORT-TERM (8-24hr): Hunt for post-exploitation: new admin accounts, scheduled tasks, lateral movement
8MONITOR: Subscribe to maven security advisories for patch updates
9ONGOING: Track SENTINEL APEX intelligence feed for follow-on campaigns targeting com.oviva.telematik:epa4all-client

📎 Intelligence References

SENTINEL INTEL BRIEF — FREE

Get Critical CVE Alerts Before They Become Incidents

Join 10,000+ SOC analysts receiving daily threat intelligence, detection rules & CVE alerts. Free. No spam. Unsubscribe anytime.

Read by 10,000+ security professionals worldwide · Unsubscribe at any time

Related Resources — SENTINEL APEX

🔭 Threat Intelligence Hub 🎯 MITRE ATT&CK Detections 🤖 OWASP LLM Top 10 📦 Detection Pack Store ⚡ SOC Pro Plans 🏢 Enterprise Contact

⚡ CYBERDUDEBIVASH SENTINEL APEX v4.0

Intelligence report generated by CYBERDUDEBIVASH SENTINEL APEX v4.0
Report ID: SENTINEL-CVE-2026-45574-2026-05-15 | Priority: 48/100 MEDIUM | Sources: 1
© 2026 CYBERDUDEBIVASH PRIVATE LIMITED
Republication requires written attribution to CYBERDUDEBIVASH SENTINEL APEX

🏢 ENTERPRISE THREAT INTELLIGENCE PLATFORM

Pre-disclosure intel, enriched IOC bundles, deploy-ready SIEM packs, and dedicated analyst support — before threats become headlines.

⚡ SOC Pro — $18/mo 🏢 Enterprise — Custom Pricing 🔌 Threat Intel API Access 📦 Detection Pack Store

48hr pre-disclosure · Enriched IOC feeds · Custom advisories · White-label reports · Dedicated analyst · MSSP licensing