CVE-2023-33876

Severity: high (CVSS 8.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.0% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2023-07-19 · updated 2026-06-17
Weakness: CWE-416

Description

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.

Affected products

Foxit Pdf Reader: 12.1.2.15332

References

https://talosintelligence.com/vulnerability_reports/TALOS-2023-1796
https://talosintelligence.com/vulnerability_reports/TALOS-2023-1796
https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1796

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