CVE-2023-50356: SSL connections to some LDAP servers are vulnerable to a man-in-the-middle attack due to improper certificate

Q: How do I fix CVE-2023-50356?

vision server: upgrade to 6.2.4719. Exact commands for each OS are on this page.

Q: Is CVE-2023-50356 being exploited?

CVE-2023-50356 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2023-50356 affect?

CVE-2023-50356 affects vision server. Severity is medium (CVSS 6.5). SSL connections to some LDAP servers are vulnerable to a man-in-the-middle attack due to improper certificate validation in AREAL Topkapi Vision (Server). This allows a remote unauthenticated attacker to gather sensitive information and pre

Q: How urgent is CVE-2023-50356?

Priority 33/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 6.5REMOTEUPGRADE

CVE-2023-50356 is a medium-severity flaw (CVSS 6.5) affecting vision server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

SSL connections to some LDAP servers are vulnerable to a man-in-the-middle attack due to improper certificate validation in AREAL Topkapi Vision (Server). This allows a remote unauthenticated attacker to gather sensitive information and prevent valid users from login.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 78%)
CISA exploited list	No
Weakness	CWE-295
Published	2024-01-31
Last modified	2026-06-17

Publisher (CNA): CERT VDE · Vendor: areal-topkapi

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-01-31 11:15 UTCPublished CVE record published
2026-06-17 06:39 UTCUpdated Record last modified

areal-topkapi vision server UPGRADE

Affected: < 6.2.4719

Fixed in: 6.2.4719

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy vision-server || rpm -q vision-server || vision-server --version

2. UPGRADE to 6.2.4719 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade vision-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade vision-server

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2023-50356?

vision server: upgrade to 6.2.4719. Exact commands for each OS are on this page.

Is CVE-2023-50356 being exploited?

CVE-2023-50356 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2023-50356 affect?

CVE-2023-50356 affects vision server. Severity is medium (CVSS 6.5). SSL connections to some LDAP servers are vulnerable to a man-in-the-middle attack due to improper certificate validation in AREAL Topkapi Vision (Server). This allows a remote unauthenticated attacker to gather sensitive information and pre

How urgent is CVE-2023-50356?

Priority 33/100. Remotely exploitable, no login, no user action

References

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