CVE-2020-7870

Severity: high (CVSS 7.2 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2021-06-29 · updated 2026-06-17
Weakness: CWE-20

Description

A memory corruption vulnerability exists when ezPDF improperly handles the parameter. This vulnerability exists due to insufficient validation of the parameter.

Affected products

UNIDOCS ezPDF Editor: before 3.0.6.5 — fixed in 3.0.6.5
Unidocs ezPDF Reader: before 3.0.0.2 — fixed in 3.0.0.2

How to fix

Upgrade to a fixed version: UNIDOCS ezPDF Editor 3.0.6.5; Unidocs ezPDF Reader 3.0.0.2. Check the vendor advisory for mitigations.

References

https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36099
https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36099

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