HOMEVULNERABILITIESCVE-2016-20056
HIGH

CVE-2016-20056

CWE-428Published: April 4, 2026· Updated: Apr 7, 2026

7.8
CVSS v3.1
EPSS:0.01%probability of exploitation in 30 daysPercentile:1.7th

Official Description

Spy Emergency build 23.0.205 contains an unquoted service path vulnerability in the SpyEmrgHealth and SpyEmrgSrv services that allows local attackers to escalate privileges by inserting malicious executables. Attackers can place executable files in the unquoted service path and trigger service restart or system reboot to execute code with LocalSystem privileges.

NVD Source

Technical Analysis

CVE-2016-20056 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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All References (4)

Quick Facts

CVE IDCVE-2016-20056
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-428
CISA KEVNo
EPSS (30d)0.01%
PublishedApr 4, 2026

Related CVEs (CWE-428)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2016-20056 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.