CVE-2020-5138: High severity sonicwall sonicos vulnerability
A Heap Overflow vulnerability in the SonicOS allows a remote unauthenticated attacker to cause Denial of Service (DoS) on the firewall SSLVPN service and leads to SonicOS crash. This vulnerability affected SonicOS Gen 5 version 5.9.1.7, 5.9.1.13, Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version SonicOS 7.0.0.0.
Affected Software
Event History
Frequently Asked Questions
What is CVE-2020-5138?
CVE-2020-5138 is a Heap Overflow vulnerability in the SonicOS, which allows a remote unauthenticated attacker to cause Denial of Service (DoS) on the firewall SSLVPN service and leads to SonicOS crash.
How does CVE-2020-5138 affect SonicOS?
CVE-2020-5138 affects SonicOS Gen 5 version 5.9.1.7, 5.9.1.13, Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, and SonicOSv 6.
What is the severity of CVE-2020-5138?
CVE-2020-5138 has a severity rating of 7.5 (high).
How can an attacker exploit CVE-2020-5138?
An attacker can exploit CVE-2020-5138 by sending a specially crafted request to the SSLVPN service of the SonicOS firewall.
Is there a fix for CVE-2020-5138?
Yes, SonicWall has released patches to address the vulnerability. It is recommended to update to the latest version of SonicOS to mitigate the risk.