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TI-2026-71580 Aliases CVE-2026-78556GHSA-rc9q-86jg-3j8q

Improper certificate validation in Siemens Industrial Edge App Publisher

Priority LOW 34CWE-295Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Passive
Attack complexity
Low
Attack requirements
Present
Impact type
Spoofing
Confidentiality · integrity · availability
High · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-295.

Summary

Siemens Industrial Edge App Publisher versions before V1.27.9 do not properly validate the server certificate when initiating a TLS connection. An unauthenticated attacker in a position to intercept network traffic can relay communication and spoof a trusted server, a Man-in-the-Middle attack (CWE-295).

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00131 2nd percentileScored 2026-11-07
Fix Fixed Industrial Edge App Publisher (Siemens): V1.27.9

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
SiemensIndustrial Edge App Publisherbefore V1.27.9V1.27.9Patch availableCNA
  • Industrial Edge App Publisher VendorSiemens Affected before V1.27.9 Fixed in V1.27.9 Patch available CNA

Remediation

Update Siemens Industrial Edge App Publisher to V1.27.9 or later.

Written with Claude Haiku 5.5 from the sources below · 2026-10-27

  • Fix · CNA Industrial Edge App Publisher (Siemens) Fixed in V1.27.9

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Siemens Industrial Edge App Publisher V1.27.9

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-71581 Cross-site scripting in Siemens Industrial Edge App PublisherPriority LOW 35
    Show all 2 records →

Timeline

  1. 2026-10-13 Threatist record created from CVE-2026-78556
  2. 2026-10-13 Alias added: GHSA-rc9q-86jg-3j8q
  3. 2026-10-14 Priority changed: MEDIUM → LOW
  4. 2026-10-16 CISA SSVC decision points changed

References

Other 1

  • TI-2026-20057 Authentication bypass in Fortinet FortiWeb KEVCVSS 3.1CRITICAL 9.4
  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-18911 Heap-based buffer overflow in Fortinet FortiSwitchManager KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-09686 Type confusion in Google Chrome KEVCVSS 3.1CRITICAL 9.8
  • TI-2022-07142 Code injection in Spring Framework KEVCVSS 3.1CRITICAL 9.8
  • TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
See all 2487 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences