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.
CVE-2020-37254
HIGHPre-NVD 7.87.8—Trending — 3 sources updated this week
EchelonGraph scoreHIGH confidence
Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-06-19. a secondary CVSS source baseline 7.8; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
7.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.8Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.8
- EG Score
- 7.8(high)
- EPSS
- 2.1%
- KEV
- Not listed
Published
June 19, 2026
Last Modified
June 23, 2026
Advisory Details (2)
Auto-updated Jun 23, 2026No patch confirmed yet.
generic
Wondershare PDFelement 5.2.9 Privilege Escalation via Unquoted Service Path | Advisories | VulnCheck
https://www.vulncheck.com/advisories/wondershare-pdfelement-privilege-escalation-via-unquoted-service-pathVendor Advisories for CVE-2020-37254(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Frequently asked(5)
What is CVE-2020-37254?
CVE-2020-37254 is a high vulnerability published on June 19, 2026. 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.
When was CVE-2020-37254 disclosed?
CVE-2020-37254 was first published in the National Vulnerability Database on June 19, 2026, with the most recent update on June 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2020-37254 actively exploited?
CVE-2020-37254 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2020-37254?
CVE-2020-37254 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2020-37254?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-37254, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2020-37254
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