CVE-2023-50442

Encryption bypass via unprotected zone metadata

Published Dec 13, 2023 · Updated Aug 2, 2024

Metadata protection failure in PRIMX ZONECENTRAL allows local users with high privileges to exclude selected files from encryption. Encrypted-zone metadata is not fully protected, so a privileged local user can alter it to exclude new files from encryption temporarily. The attacker needs high local privileges, and the unauthorized change is detectable through periodic scans described in the Administrator Guide.

CVSS severity5.5
Medium
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Metadata protection failure in PRIMX ZONECENTRAL allows local users with high privileges to exclude selected files from encryption. Encrypted-zone metadata is not fully protected, so a privileged local user can alter it to exclude new files from encryption temporarily. The attacker needs high local privileges, and the unauthorized change is detectable through periodic scans described in the Administrator Guide.

The record

CVE
CVE-2023-50442
Published
Dec 13, 2023
Updated
Aug 2, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1565.001
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Dec 13, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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 privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/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.

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No observations available

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

Weakness, pattern, technique

T1565.001Stored Data Manipulation

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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