CVE-2020-5136

MEDIUM
6.5
CVSS Score
Published: October 12, 2020 at 10:40 AM UTC
Updated: June 17, 2026 at 03:20 AM UTC
2 products affected across 1 vendorSonicOSSonicOSv

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Severity
MEDIUM6.5
Exploit prediction
EPSS 1%

Description

A buffer overflow vulnerability in SonicOS allows an authenticated attacker to cause Denial of Service (DoS) in the SSL-VPN and virtual assist portal, which leads to a firewall 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 7.0.0.0.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 5.9.1.13v ≤ 5.9.1.13-5nv ≤ 5.9.1.7-2nv ≤ 6.0.5.3-93ov ≤ 6.5.1.11-4nv ≤ 6.5.4.4-44v-21-794v ≤ 6.5.4.7-79n6.0.0.0 ≤ v ≤ 6.0.5.36.5.0.0 ≤ v ≤ 6.5.1.116.5.4.0 ≤ v ≤ 6.5.4.77.0.0.07.0.0.0-1
v ≤ 6.5.4.4

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (1)

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-120

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