CVE-2021-34970 json
Foxit PDF Reader print Method Use of Externally-Controlled Format String Information Disclosure Vulnerability
published 2y ago modified 4mo ago also EUVD-2021-21617
- cvss
- 3.3
- version 3.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 26%
- public exploits
- 0
- none known
Summary
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 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.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2y ago
Exploit prediction
0.33% chance of exploitation in the next 30 days, higher than 26% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.0 | 3.3 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N |
Affected products
- Foxit PDF Reader
- foxit pdf_reader
- foxit pdf_editor
Classification
- Weakness
-
- CWE-134 Use of Externally-Controlled Format String
References
-
foxit.com
/support/security-bulletins.html
vendor-advisory
-
zerodayinitiative.com
/advisories/ZDI-21-1201/
third-party-advisory
Sources
- CVE List CVE-2021-34970
- NVD CVE-2021-34970
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