CVE-2020-5135: SonicWall SonicOS Buffer Overflow Vulnerability

Published Oct 12, 2020
·
Updated

A buffer overflow vulnerability in SonicOS allows a remote attacker to cause Denial of Service (DoS) and potentially execute arbitrary code by sending a malicious request to the firewall. This vulnerability affected SonicOS Gen 6 version 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version 7.0.0.0.

Affected Software

6 affected components
SonicWall SonicOS
SonicWall SonicOS<=6.0.5.3
SonicWall SonicOS>=6.5.0.0<=6.5.1.11
SonicWall SonicOS>=6.5.4.0<=6.5.4.7
SonicWall SonicOS=7.0.0.0
SonicWall SonicOSv<=6.5.4.4

Event History

Oct 12, 2020
CVE Published
via MITRE·10:40 AM
Data Sourced
via MITRE·10:40 AM
DescriptionWeakness
Data Sourced
via NVD·11:15 AM
DescriptionSeverityWeaknessAffected Software
Mar 15, 2022
Known Exploited
via CISA·12:00 AM
Known Ransomware
via CISA·12:00 AM
Data Sourced
via CISA·12:00 AM
DescriptionAffected Software

Frequently Asked Questions

1

What is the vulnerability ID for this SonicWall SonicOS vulnerability?

The vulnerability ID for this SonicWall SonicOS vulnerability is CVE-2020-5135.

2

What is the severity of CVE-2020-5135?

The severity of CVE-2020-5135 is critical.

3

How does the SonicWall SonicOS buffer overflow vulnerability affect the firewall?

The buffer overflow vulnerability in SonicWall SonicOS allows a remote attacker to cause Denial of Service (DoS) and potentially execute arbitrary code by sending a malicious request to the firewall.

4

Which versions of SonicOS are affected by CVE-2020-5135?

SonicOS Gen 6 versions 6.5.4.7, 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v, and Gen 7 version 7.0.0.0 are affected by CVE-2020-5135.

5

Is there a fix available for CVE-2020-5135?

Yes, SonicWall has released fixes for the affected versions. Please refer to the vendor's advisory for more information.

Contact

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