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Vulnerabilities

Vulnerability · CVE-2026-85114

A vulnerability has been identified in .NET Client Library for SIMATIC S7 Webserver API (All versions < V3.3.61).

Published Oct 13, 2026 · catalog updated Oct 15, 2026 · A vulnerability has been

Check if you run it

No confirmed exploitation is on record for CVE-2026-85114. EPSS is 0.44%. Act only if a listed version of A vulnerability has been is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (A vulnerability has been).
  • 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.
Severity
High8.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.44%
Remediation
Not established
Affected products
See sources for product scope

A vulnerability has been identified in .NET Client Library for SIMATIC S7 Webserver API (All versions < V3.3.61). Affected applications do not properly validate filenames received from remote servers during ticket downloads. This could allow an attacker who can manipulate the ticket response to write arbitrary files outside the intended download directory and, when overwriting is enabled, replace existing files accessible to the application.

No affected version ranges are stored yet. Use the vendor advisory before you decide this record does not apply.

How to fix CVE-2026-85114

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-2026-85114. EPSS is 0.44%. Act only if a listed version of A vulnerability has been 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-22: Path Traversal. EPSS 0.44%. 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.

  1. Oct 13, 2026 · NIST NVD

    Detected

    A vulnerability has been identified in .NET Client Library for SIMATIC S7 Webserver API (All versions < V3.3.61). Affected applications do not properly validate filenames received from remote servers during ticket downloads. This could allow an attacker who can manipulate the ticket response to write arbitrary files outside the intended download directory and, when overwriting is enabled, replace

  2. Oct 15, 2026 · NIST NVD

    Updated

    A vulnerability has been identified in .NET Client Library for SIMATIC S7 Webserver API (All versions < V3.3.61). Affected applications do not properly validate filenames received from remote servers during ticket downloads. This could allow an attacker who can manipulate the ticket response to write arbitrary files outside the intended download directory and, when overwriting is enabled, replace

Sources

  • CVE.orgVulnerability recordCVE-2026-85114

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-85114

    30-day exploitation probability 0.4%

    first.org
  • NIST NVDVulnerability recordCVE-2026-85114

    A vulnerability has been identified in .NET Client Library for SIMATIC S7 Webserver API (All versions < V3.3.61). Affected applications do not properly validate filenames received from remote servers during ticket downloads. This could allow an attacker who can manipulate the

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.