CVE-2023-5909 (GCVE-0-2023-5909)

Vulnerability from cvelistv5 – Published: 2023-11-30 22:05 – Updated: 2026-02-25 17:20
VLAI?
Title
Improper Validation of Certificate with Host Mismatch in PTC KEPServerEx
Summary
KEPServerEX does not properly validate certificates from clients which may allow unauthenticated users to connect.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-297 - Improper Validation of Certificate with Host Mismatch
Assigner
References
Impacted products
Vendor Product Version
PTC KEPServerEX Affected: 0 , ≤ 6.14.263.0 (custom)
Create a notification for this product.
Credits
Shawn Hoffman
Show details on NVD website
To clipboard 

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Tags
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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.