Use After Free in Foxit Pdf Editor
CVE-2021-34966
Foxit PDF Editor FileAttachment Annotation Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Editor. 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 validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14367.
Vulnerability class: Use-After-Free
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.003 (26.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Foxit Pdf Editor — versions 11.0.0.49893
- Foxit Pdf Editor — versions 11.0.0.49893, 11.0.1.49938
- Foxit Pdf Reader
- Microsoft Windows
Weakness classification (CWE)
References
- www.zerodayinitiative.com/advisories/ZDI-21-1197/ (x_research-advisory, Third Party Advisory)
- www.foxit.com/support/security-bulletins.html (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-34966?
- CVE-2021-34966 is a high-severity vulnerability in Foxit Pdf Editor, classified under Use After Free. CVSS score: 7.8/10. Published 2024-05-07.
- How severe is CVE-2021-34966?
- High severity. CVSS v3 base score is 7.8 out of 10.