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Siemens Industrial Edge App Publisher before 1.27.9 vulnerable to RCE (CVE-2026-78556, CVE-2026-78557)

Original title: Siemens Industrial Edge App Publisher

CISA Advisoriesby CISA ()4 min read
Read at cisa.gov
Part of a story covered by 3 sourcesSiemens Industrial Edge devices leak internal data to authenticated usersMerged summary & timeline
AI summary · x-ai/grok-4.7Summaries by Vani AI

Update to V1.27.9 or later to prevent network attackers from impersonating the management server and achieving RCE via Node.js.

The Siemens Industrial Edge App Publisher contains a vulnerability chain involving improper certificate validation and improper neutralization of input during web page generation. These issues can be combined to allow an attacker on the network to impersonate the management server and execute arbitrary code on the local machine through Node.js integration. Siemens has released an update for the Industrial Edge App Publisher and recommends users update to the latest version.

Key facts
  • Affected: Industrial Edge App Publisher < V1.27.9
  • CVEs: CVE-2026-78556 (CVSS 7.4 HIGH), CVE-2026-78557 (CVSS 8.3 HIGH)
  • Impacts: MITM and spoofing via TLS, XSS leading to RCE
  • Affected sectors: Critical Manufacturing, Transportation, Energy, Healthcare
  • Worldwide deployment
Security assessment · AI, from the articleNo known exploitation

Impact: impersonate management server and execute arbitrary code (RCE) on the local machine

What to do
  1. 1.Update to V1.27.9 or later version
  2. 2.Protect network access to control system devices
  3. 3.Use VPNs for remote access and update to latest version
Analyze CVE-2026-78556 with Vani AIImpact, affected versions, exploitation, mitigations and detection
CVEs
CVE-2026-78556CVE-2026-78557
Tags
siemensindustrial-edgercecsafics-advisory
Vendors
Siemens
Products
Industrial Edge App Publisher

Vulnerabilities mentioned

All
CVEVulnerabilityCVSSEPSSSignalsPublished
CVE-2026-78557
+1 related CVE
CVE-2026-78556
XSS to RCE in Siemens Industrial Edge App Publisher
7.7
group max
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From the original article

4 min read at cisa.gov

View CSAF Summary The Industrial Edge App Publisher contains a vulnerability chain involving improper certificate validation and the rendering of unescaped data from backend responses. These issues can be combined to allow an attacker on the network to impersonate the management server and execute arbitrary code (RCE) on the local machine through Node. js integration.

CISA Advisories

By CISA · cisa.gov

Read the full article at CISA Advisories

A short excerpt; the article and its images belong to the publisher. Summary, key facts and assessment above are AI-written from the article and can be wrong.