Cyber Resilience

CVE-2021-34970

Medium

Published: 07 May 2024

Published
07 May 2024
Modified
13 August 2025
KEV Added
Patch
CVSS Score v3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS Score 0.0037 59.4th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-34970 is a medium-severity Use of Externally-Controlled Format String (CWE-134) vulnerability in Foxit Pdf Editor. Its CVSS base score is 5.5 (Medium).

Operationally, ranked in the top 40.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Foxit PDF Reader print Method Use of Externally-Controlled Format String Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Foxit PDF Reader. User interaction is required to exploit this vulnerability in that the…

more

target must visit a malicious page or open a malicious file. The specific flaw exists within the implementation of the print method. The issue results from the lack of proper validation of a user-supplied string before using it as a format specifier. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-14849.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

foxit
pdf editor
11.0.0.49893, 11.0.1.49938 · ≤ 10.1.5.37672
foxit
pdf reader
≤ 11.0.1.49938

Mitigating Controls

No mitigating controls mapped yet. The per-CVE control annotator has not reached this CVE.

References