CVE-2021-26605 | BDVDB-2026-158178 Detail

unidocsezPDFReader

Description#

An improper input validation vulnerability in the service of ezPDFReader allows attacker to execute arbitrary command. This issue occurred when the ezPDF launcher received and executed crafted input values through JSON-RPC communication.

Impact#

Per CVSS v3.1: confidentiality impact none, integrity impact high, availability impact none. Attack vector: network.

Weaknesses#

CWE-20 Improper Input Validation

References#

https://www.boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=36168

Exploit#

No public exploit known

History#

Version 12021-08-05Record published in the CVE List.
Version 22024-08-03Most recent update recorded in the CVE List.

Published

Published: 2021-08-05
Last modified: 2024-08-03

Vendor information

Vendor: unidocs
Product: ezPDFReader

All unidocs vulnerabilities

Score

7.5 High

EPSS

1.0%, Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 64.5.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Improper Input Validation

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
2.0 ~ 3.0
Fixed
Not stated

Scoring System

CVSS v4.0

Not available

CVSS v3.1

7.5 High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	None
User Interaction	None
Scope	Unchanged
Confidentiality	None
Integrity	High
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).