CVE-2020-26534 Use after free in n/a
A use-after-free vulnerability in Foxit Reader allows attackers to execute arbitrary code via malicious AcroForm JavaScript.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-26534?
CVE-2020-26534 is a critical use after free vulnerability in Foxitsoftware Foxit Reader, published on 2 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in Foxit Reader and PhantomPDF before 10.1. There is an Opt object use-after-free related to Field::ClearItems and Field::DeleteOptions, during AcroForm JavaScript execution.
Weakness: CWE-416
Which versions are affected by CVE-2020-26534?
It affects 2 products.
Products include Foxitsoftware Foxit Reader, Foxitsoftware Phantompdf.
How do I fix CVE-2020-26534?
No fix has been published for CVE-2020-26534 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-2020-26534 being exploited?
There is no known exploitation of CVE-2020-26534 in the wild and no public exploit code.
Other vulnerabilities in Foxitsoftware Foxit Reader
Sources
Also known as GHSA-w8pv-fqp3-jvx4.