CVE-2023-25737 Memory corruption in Firefox
An invalid downcast in Firefox could lead to undefined behavior, potentially allowing attackers to execute arbitrary code.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2023-25737?
CVE-2023-25737 is a high-severity memory corruption vulnerability in Mozilla Firefox, published on 2 Jun 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
An invalid downcast from <code>nsTextNode</code> to <code>SVGElement</code> could have lead to undefined behavior. This vulnerability affects Firefox < 110, Thunderbird < 102.8, and Firefox ESR < 102.8.
Weakness: CWE-704
Which versions are affected by CVE-2023-25737?
It affects 3 products.
Products include Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird.
How do I fix CVE-2023-25737?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-25737 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-25737 exists.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as DEBIAN-CVE-2023-25737, GHSA-8fgq-jggm-33jc, UBUNTU-CVE-2023-25737.