CVE-2021-33794 Denial of service in n/a
Attackers can cause application crashes or disclose information via mishandled Tab key interactions in XFA forms.
- 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-2021-33794?
CVE-2021-33794 is a critical denial of service vulnerability in Foxitsoftware Foxit Reader, published on 11 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Foxit Reader before 10.1.4 and PhantomPDF before 10.1.4 allow information disclosure or an application crash after mishandling the Tab key during XFA form interaction.
Which versions are affected by CVE-2021-33794?
It affects 2 products.
Products include Foxitsoftware Foxit Reader, Foxitsoftware Phantompdf.
How do I fix CVE-2021-33794?
No fix has been published for CVE-2021-33794 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2021-33794 being exploited?
There is no known exploitation of CVE-2021-33794 in the wild and no public exploit code.
Other vulnerabilities in Foxitsoftware Foxit Reader
Sources
Also known as GHSA-c7q8-wf85-wcvw.