HOMEVULNERABILITIESCVE-2020-37254
HIGH

CVE-2020-37254

CWE-428Published: June 19, 2026· Updated: Jun 23, 2026

7.8
CVSS v3.1

Official Description

Wondershare PDFelement 5.2.9 contains a privilege escalation vulnerability due to an unquoted service path in the WsAppService Windows service. Local attackers can place a malicious executable in the service path and execute code with LocalSystem privileges upon service restart or system reboot.

NVD Source

Technical Analysis

CVE-2020-37254 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-2020-37254
CVSS Score7.8 / 10
SeverityHIGH
WeaknessCWE-428
CISA KEVNo
PublishedJun 19, 2026

Related CVEs (CWE-428)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2020-37254 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.