Use After Free in Foxit Reader
CVE-2023-33876
A use-after-free vulnerability exists in the way Foxit Reader 12.1.2.15332 handles destroying annotations. Specially crafted Javascript code inside a malicious PDF document can trigger reuse of a previously freed object, which can lead to memory corruption and result in arbitrary code execution. An attacker needs to trick the user into opening the malicious file to trigger this vulnerability. Exploitation is also possible if a user visits a specially crafted, malicious site if the browser plugin extension is enabled.
Vulnerability class: Use-After-Free
EPSS: 0.010 (59.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Foxit Reader — versions 12.1.2.15332
- Foxit Pdf_reader — versions 12.1.2.15332
Weakness classification (CWE)
References
- talos-cna@cisco.com (Exploit, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-33876?
- CVE-2023-33876 is a high-severity vulnerability in Foxit Reader, classified under Use After Free. CVSS score: 8.8/10. Published 2023-07-19.
- How severe is CVE-2023-33876?
- High severity. CVSS v3 base score is 8.8 out of 10.