vulnerability
SonicWall SonicOS: CVE-2020-5135: Denial of Service (DoS) vulnerability in the SonicOS due to buffer overflow and potentially execute arbitrary code
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:L/Au:N/C:P/I:P/A:P) | Oct 12, 2020 | May 21, 2026 | May 21, 2026 |
Severity
7
CVSS
(AV:N/AC:L/Au:N/C:P/I:P/A:P)
Published
Oct 12, 2020
Added
May 21, 2026
Modified
May 21, 2026
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 and SonicOSv 6.5.4.v.
Solutions
sonicwall-sonicos-upgrade-6547-83nsonicwall-sonicos-upgrade-65112-1nsonicwall-sonicos-upgrade-6053-94osonicwall-sonicos-upgrade-654v-21s-987
Rapid7 Labs
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