Out-of-bounds Read in Foxit Pdf Editor

CVE-2021-34950

Foxit PDF Reader Annotation Out-Of-Bounds Read Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code 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 handling of Annotation objects. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14396.

Vulnerability class: Buffer Overflow

EPSS: 0.003 (27.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-34950?
CVE-2021-34950 is a high-severity vulnerability in Foxit Pdf Editor, classified under Out-of-bounds Read. CVSS score: 7.8/10. Published 2024-05-07.
How severe is CVE-2021-34950?
High severity. CVSS v3 base score is 7.8 out of 10.