CVE-2020-10515Public exploit

LocalSystem code execution via writable service path

Published Apr 2, 2020 · Updated Aug 4, 2024

Local privilege escalation in STARFACE UCC Client before 6.7.1.204 allows local users to execute code as Windows LocalSystem. StarfaceUccApiRegistryService grants interactive users permission to change its executable path, then launches that path through UccApiRegistryService.exe as LocalSystem. Any locally logged-on unprivileged user can replace the service binary path and restart the service, gaining administrative control of the host.

CVSS severity9.8
Critical
EPSS probability2.87%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local privilege escalation in STARFACE UCC Client before 6.7.1.204 allows local users to execute code as Windows LocalSystem. StarfaceUccApiRegistryService grants interactive users permission to change its executable path, then launches that path through UccApiRegistryService.exe as LocalSystem. Any locally logged-on unprivileged user can replace the service binary path and restart the service, gaining administrative control of the host.

The record

CVE
CVE-2020-10515
Published
Apr 2, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-427, T1543.003
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 2, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0NIST NVDAV:N/AC:L/Au:N/C:C/I:C/A:C

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-427Uncontrolled Search Path Element
T1543.003Create or Modify System Process: Windows Service

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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