CVE-2018-20247

HIGHNVD 7.88.3▲
EchelonGraph scoreHIGH confidence

Score elevated to 8.3 because EPSS predicts 54% probability of exploitation within the next 30 days (top 1.1% of all CVEs). NVD baseline CVSS 7.8 retained for reference. Confidence: see factors.

Triggered by: EPSS exploit prediction ≥85%
Sources: epss, ghsa, nvd
Elevated
7.8
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • High exploitation likelihood — EPSS 54%
CISA-KEV: Not listedEPSS: 54%CVSS: 7.8Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

In Foxit Quick PDF Library (all versions prior to 16.12), issue where loading a malformed or malicious PDF containing a recursive page tree structure using the LoadFromFile, LoadFromString or LoadFromStream functions results in a stack overflow.

CVSS v3
7.8
EG Score
8.3(high)
EG Risk
64(Track)
EG Risk 64/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity83% × 45%
Exploitation54% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
98.9%
KEV
Not listed

Published

December 24, 2018

Last Modified

November 21, 2024

References (4)

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 38× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-23 01:35 UTCEG score recompute▲ 0.50
  2. 2026-07-22 22:15 UTCEG score recompute
  3. 2026-07-22 14:05 UTCEPSS rescore
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  1. 2026-06-30 23:20 UTCEPSS rescore
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  27. 2026-06-11 13:57 UTCEPSS rescore
  28. 2026-06-10 22:16 UTCEPSS rescore
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  30. 2026-06-08 14:14 UTCEPSS rescore
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  41. 2026-05-31 22:29 UTCEPSS rescore
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  43. 2026-05-31 00:14 UTCEPSS rescore
  44. 2026-05-29 13:41 UTCEPSS rescore
  45. 2026-05-28 13:42 UTCEPSS rescore
  46. 2026-05-28 13:42 UTCEPSS rescore
  47. 2026-05-27 23:58 UTCEG score recompute
  48. 2026-05-27 23:58 UTCGHSA enrichment
  49. 2026-05-26 13:42 UTCEPSS rescore
  50. 2026-05-26 13:42 UTCEPSS rescore
  51. 2026-05-26 07:17 UTCEPSS rescore
  52. 2026-05-26 07:17 UTCEPSS rescore

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2018-20247?
CVE-2018-20247 is a high vulnerability published on December 24, 2018. In Foxit Quick PDF Library (all versions prior to 16.12), issue where loading a malformed or malicious PDF containing a recursive page tree structure using the LoadFromFile, LoadFromString or LoadFromStream functions results in a stack overflow.
When was CVE-2018-20247 disclosed?
CVE-2018-20247 was first published in the National Vulnerability Database on December 24, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-20247 actively exploited?
CVE-2018-20247 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-20247?
CVE-2018-20247 has a CVSS v3 base score of 7.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 8.3.
How do I remediate CVE-2018-20247?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-20247, 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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