CVE-2023-28871Public exploit

Local Registry disclosure via symbolic-link traversal

Published Dec 9, 2023 · Updated Aug 2, 2024

Link following in the Support Assistant in NCP Secure Enterprise Client before 12.22 allows local users to read protected Windows Registry data. The privileged diagnostic export recursively follows attacker-created Registry symbolic links under writable Services subkeys into arbitrary Registry locations. Low-privileged local access and a writable exported subkey are required; exposed data can include protected material such as the SAM hive.

CVSS severity4.3
Medium
EPSS probability0.59%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Link following in the Support Assistant in NCP Secure Enterprise Client before 12.22 allows local users to read protected Windows Registry data. The privileged diagnostic export recursively follows attacker-created Registry symbolic links under writable Services subkeys into arbitrary Registry locations. Low-privileged local access and a writable exported subkey are required; exposed data can include protected material such as the SAM hive.

The record

CVE
CVE-2023-28871
Published
Dec 9, 2023
Updated
Aug 2, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-59, CAPEC-132, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 9, 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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-59Improper Link Resolution Before File Access ('Link Following')
CAPEC-132Symlink Attack
T1005Data from Local System

Public exploit references

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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