Vulnerability · CVE-2026-78556
A vulnerability has been identified in Industrial Edge App Publisher (All versions < V1.27.9).
Published Oct 13, 2026 · catalog updated Oct 16, 2026 · Siemens Industrial Edge App Publisher
Last checked Oct 25, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2026-78556. EPSS is 0.13%. Act only if a listed version of Siemens Industrial Edge App Publisher is installed.
Gaps on this record
- No version range is stored. A customer cannot check an installed version against this record.
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2026-78557 · High
- Severity
- High7.4
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.13%
- Remediation
- Not established
- Affected products
- vendor Siemens Industrial Edge App Publisher
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.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor Siemens Industrial Edge App Publisherversion unspecified
How to fix CVE-2026-78556
No stored fix
No vendor fix text is stored. Use the linked advisory before you change production.
Version check
No version range is stored, so an installed version cannot be checked on this page.
Advisory
Open the cisa_advisories record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2026-78556. EPSS is 0.13%. Act only if a listed version of Siemens Industrial Edge App Publisher is installed.
Which versions are affected?
Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
CWE-295: Improper Certificate Validation. EPSS 0.13%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Oct 16, 2026 · CVE.org
Updated
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 serv
Oct 22, 2026 · CISA ICS Advisories
Detected
CVE-2026-78556 is listed by Siemens Industrial Edge App Publisher.
Sources
- CISA Cybersecurity AdvisoriesGovernment advisoryCVE-2026-78556
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
cisa.gov - CISA ICS AdvisoriesGovernment advisoryCVE-2026-78556
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
cisa.gov - CVE.orgVulnerability recordCVE-2026-78556
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
cve.org - FIRST EPSSExploitation probabilityCVE-2026-78556
30-day exploitation probability 0.13%
first.org
References
Freshness
Last verified in this catalog Oct 25, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSOct 25, 2026
- CISA Cybersecurity AdvisoriesOct 24, 2026
- CVE.orgOct 23, 2026
- CISA ICS AdvisoriesOct 23, 2026