CVE-2020-36957

HIGHNVD 7.87.8—Elevated

7.8

PDF Complete 3.5.310.2002 contains an unquoted service path vulnerability in its pdfsvc.exe service configuration. Attackers can exploit the unquoted path to inject and execute malicious code with elevated LocalSystem privileges.

CVSS v3: 7.8
EG Score: 7.8(medium)
EPSS: 6.6%
KEV: Not listed

Published

January 26, 2026

Last Modified

April 15, 2026

References (3)

disclosure@vulncheckhttps://pdf-complete.informer.com/3.5/
disclosure@vulncheckhttps://www.exploit-db.com/exploits/49226
disclosure@vulncheckhttps://www.vulncheck.com/advisories/pdf-complete-pdfsvcexe-unquoted-service-path

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-428Unquoted Search Path or Element

Data Freshness Timeline

(refreshed 10× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-04 13:10 UTCepss_batch
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2026-06-02 20:11 UTCepss_batch
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2026-05-22 21:16 UTCepss_batch
2026-05-22 21:16 UTCepss_batch

Frequently asked(5)

What is CVE-2020-36957?

CVE-2020-36957 is a high vulnerability published on January 26, 2026. PDF Complete 3.5.310.2002 contains an unquoted service path vulnerability in its pdfsvc.exe service configuration. Attackers can exploit the unquoted path to inject and execute malicious code with elevated LocalSystem privileges.

When was CVE-2020-36957 disclosed?

CVE-2020-36957 was first published in the National Vulnerability Database on January 26, 2026, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2020-36957 actively exploited?

CVE-2020-36957 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 6.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2020-36957?

CVE-2020-36957 has a CVSS v3 base score of 7.8 (NVD).

How do I remediate CVE-2020-36957?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2020-36957, 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.

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CVE-2020-36957

📅 Published

🔄 Last Modified

🔗 References (3)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2020-36957?

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Published

Last Modified

References (3)

Frequently asked(5)

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