CVE-2020-5136

moderate-risk
Published 2020-10-12

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.

Do I need to act?

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0.31% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.5/10 Medium
NETWORK / LOW complexity

Affected Products (3)

Affected Vendors

Sonicwall

References (2)

Vendor Advisory https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2020-0011
Vendor Advisory https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2020-0011
34
/ 100
moderate-risk
Severity 24/34 · High
Exploitability 1/34 · Minimal
Exposure 9/34 · Low