CVE-2020-5135

CRITICALCISA KEV

9.8

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published10/12/2020

Last Modified10/31/2025

Sourcekev

Honeypot Sightings0

CISA KEV

VendorSonicWall

ProductSonicOS

Vulnerability NameSonicWall SonicOS Buffer Overflow Vulnerability

KEV Date Added2022-03-15

Remediation Due Date2022-04-05

Ransomware UseUnknown

Affected Products

sonicwall:sonicossonicwall:sonicosv

Weaknesses (CWE)

CWE-120CWE-120

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2020-0010(PSIRT@sonicwall.com)

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2020-0010(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-5135(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.