CVE-2020-36957
Unquoted service path in PDF Complete pdfsvc.exe allows LocalSystem escalation.
Is CVE-2020-36957 being exploited?
Not confirmed. CVE-2020-36957 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.14% probability of exploitation in the next 30 days.
How severe is CVE-2020-36957?
CVE-2020-36957 is rated High with a CVSS score of 8.5. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2020-36957?
Not known from our data. No patch reference has been recorded for CVE-2020-36957, which is not the same as no patch existing — a fix may have shipped without a tagged reference, or after this record was written. The vendor advisory is the only authority on whether a fix exists, and mitigations may be available regardless.
What does CVE-2020-36957 affect?
CVE-2020-36957 affects PDF Complete pdfsvc.exe (Windows). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2020-36957?
Patch when available; if not, fix the path and restrict service privileges.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Privilege escalation via unquoted pdfsvc.exe path; attacker gains LocalSystem on Windows.
Immediate action required
- affected<= 3.5.310.2002
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.