CVE-2021-41780 Use after free in n/a

What is CVE-2021-41780?

CVE-2021-41780 is a high-severity use after free vulnerability in Foxit Pdf Editor, published on 29 Aug 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

Foxit PDF Reader before 11.1 and PDF Editor before 11.1, and PhantomPDF before 10.1.6, allow attackers to trigger a use-after-free and execute arbitrary code because JavaScript is mishandled.

Weakness: CWE-416

Which versions are affected by CVE-2021-41780?

It affects 3 products.

Products include Foxit Pdf Editor, Foxit Pdf Reader, Foxit Phantompdf.

How do I fix CVE-2021-41780?

No fix has been published for CVE-2021-41780 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2021-41780 being exploited?

There is no known exploitation of CVE-2021-41780 in the wild and no public exploit code.

Other vulnerabilities in Foxit Pdf Editor

• CVE-2022-28104 File upload in n/a Critical 9.8
• CVE-2022-24954 Memory corruption in n/a Critical 9.8
• CVE-2022-24955 Other in n/a Critical 9.8
• CVE-2026-91798 Foxit PDF Editor/Reader Updater Privilege Escalation High 8.8
• CVE-2026-91800 Foxit PDF Editor installer local privilege escalation High 8.8

All Foxit Pdf Editor vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-3v83-pcq5-44vq.