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Critical · 9.8 Known exploited · Ransomware CVE-2020-5135 EUVD-2020-26382GHSA-vw5m-894x-7rp4

A buffer overflow vulnerability in SonicOS allows a remote attacker to cause Denial of Service (DoS) and potentially execute arbitrary code…

Published Oct 12, 2020 · Updated Oct 21, 2025 · Assigned by sonicwall

Description

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 products

VendorProductAffectedFixed
SonicWall SonicOS SonicOS 6.5.4.7-79n and earlier, SonicOS 6.5.1.11-4n and earlier, SonicOS 6.0.5.3-93o and earlier, SonicOSv 6.5.4.4-44v-21-794 and earlier, SonicOS 7.0.0.0-1 —

References