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CVE-2026-78556

7.4, high

A vulnerability has been identified in Industrial Edge App Publisher (All versions < V1.27.9)

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
7.4, high high CVSS v3.1
EPSS, next 30 days
0.2% higher than 10.8% of scored CVEs
Exploitation
No public evidence
Published
13 Oct 20264 days ago

Description

A vulnerability has been identified in Industrial Edge App Publisher (All versions < V1.27.9). The affected software does not properly validate the server certificate when initiating a TLS connection. This allows an attacker to intercept and relay communication (Man-in-the-Middle attack) and to spoof a trusted entity by interfering in the communication path between the client and the intended server.

Details

Vendor
Siemens
Product
Industrial Edge App Publisher
Weakness
CWE-295 (opens in a new tab)
Status
Awaiting analysis
Updated
15 Oct 2026
Assigner
productcert@siemens.com

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

References 1

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Siemens CVEs

Every Siemens CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2016-8562 Siemens SIMATIC CP 1543-1 Improper Privilege Management Vulnerability KEV EPSS 4% 7.5, high
  • CVE-2026-44415 Affected systems do not properly restrict access to internal APIs and paths for authenticated users EPSS 0.5% 9.1, critical
  • CVE-2026-63353 Siemens SIMATIC Drive Controller CPU 1504D TF Cross-Site Scripting Vulnerability EPSS 0.4% 9.6, critical
  • CVE-2026-63354 Siemens SIMATIC Drive Controller CPU 1504D TF Cross-Site Scripting Vulnerability EPSS 0.5% 9.6, critical
  • CVE-2026-102073 Siemens APOGEE MBC (PPC) (BACnet) Integer Underflow Vulnerability EPSS 0.5% 8.2, high
  • CVE-2026-59241 A vulnerability has been identified in SIMATIC WinCC V7.5 (All versions), SIMATIC WinCC V8.0 (All versions < V8.0 Update 11), SIMATIC… EPSS 0.5% 8.8, high
  • CVE-2026-72895 A vulnerability has been identified in SIMATIC IPC BX-21A (All versions < V31.01.13), SIMATIC IPC RW-543A (All versions < V1.1.4),… EPSS 0.1% 7.7, high
  • CVE-2026-85114 Siemens .NET Client Library for SIMATIC S7 Webserver API Path Traversal Vulnerability EPSS 0.4% 7.5, high

Beyond this page

Is CVE-2026-78556 in your network?

This page tells you how dangerous CVE-2026-78556 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

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  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

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Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.