CVE-2023-50356Network attack vector

Credential interception via unchecked LDAPS certificates

Published Jan 31, 2024 · Updated Jun 17, 2025

Improper certificate validation in AREAL Topkapi Vision Server 6.2.4718 and earlier allows remote attackers to intercept LDAP credentials. The LDAPS component in Novell and Synology modes establishes TLS connections without verifying the LDAP server certificate, accepting a man-in-the-middle endpoint. Exposure requires Novell or Synology LDAPS and an attacker positioned on the network path; Active Directory LDAP/LDAPS is unaffected, and interception can disclose usernames and passwords or block valid logins.

CVSS severity6.5
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper certificate validation in AREAL Topkapi Vision Server 6.2.4718 and earlier allows remote attackers to intercept LDAP credentials. The LDAPS component in Novell and Synology modes establishes TLS connections without verifying the LDAP server certificate, accepting a man-in-the-middle endpoint. Exposure requires Novell or Synology LDAPS and an attacker positioned on the network path; Active Directory LDAP/LDAPS is unaffected, and interception can disclose usernames and passwords or block valid logins.

The record

CVE
CVE-2023-50356
Published
Jan 31, 2024
Updated
Jun 17, 2025
Vendor
AREAL SAS
Product
Topkapi Vision Server
Classifications
CWE-295, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 31, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 17, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=6.2.4718

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

AREAL SAS · Topkapi Vision Serverversion=0 <=6.2.4718

Published CVSS scores

6.5CERT@VDECVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:L
6.5NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-295Improper Certificate Validation
T1557Adversary-in-the-Middle

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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