CVE-2021-20046: Buffer Overflow
A Stack-based buffer overflow in the SonicOS HTTP Content-Length response header allows a remote authenticated attacker to cause Denial of Service (DoS) and potentially results in code execution in the firewall. This vulnerability affected SonicOS Gen 5, Gen 6 and Gen 7 firmware versions.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2021-20046?
CVE-2021-20046 is a stack-based buffer overflow vulnerability in the SonicOS HTTP Content-Length response header.
How does CVE-2021-20046 affect SonicOS firmware versions?
CVE-2021-20046 affects SonicOS Gen 5, Gen 6, and Gen 7 firmware versions.
What is the severity of CVE-2021-20046?
CVE-2021-20046 has a severity rating of 8.8 (high).
How can CVE-2021-20046 be exploited?
CVE-2021-20046 can be exploited by a remote authenticated attacker to cause denial of service (DoS) and potentially execute code in the firewall.
Where can I find more information about CVE-2021-20046?
You can find more information about CVE-2021-20046 at the following link: [SonicWall PSIRT](https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0027)