CVE-2023-50441

Credential exposure via embedded UNC reference

Published Dec 13, 2023 · Updated Oct 8, 2024

UNC reference injection in PRIMX ZONECENTRAL for Windows before Q.2021.2 or before 2023.5 allows attackers to trigger outbound network access. A modified encrypted zone embeds a UNC reference that the Windows client resolves when the folder is opened, initiating an authentication request to an attacker-controlled location. The victim must open the compromised zone; PRIM'X reports exposure of user privileges, while credential disclosure depends on the resulting authentication request.

CVSS severity4.8
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

UNC reference injection in PRIMX ZONECENTRAL for Windows before Q.2021.2 or before 2023.5 allows attackers to trigger outbound network access. A modified encrypted zone embeds a UNC reference that the Windows client resolves when the folder is opened, initiating an authentication request to an attacker-controlled location. The victim must open the compromised zone; PRIM'X reports exposure of user privileges, while credential disclosure depends on the resulting authentication request.

The record

CVE
CVE-2023-50441
Published
Dec 13, 2023
Updated
Oct 8, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1187
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 8, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.8PRIM'XCVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1187Forced Authentication

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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