CVE-2020-5135

high-risk
Published 2020-10-12

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.

Do I need to act?

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22.6% chance of exploitation in next 30 days
EPSS score — higher than 77% of all CVEs
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CISA KEV: actively exploited in the wild
On the Known Exploited Vulnerabilities catalog — federal agencies must patch
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (3)

Affected Vendors

Sonicwall

References (3)

Vendor Advisory https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2020-0010
Vendor Advisory https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2020-0010
US Government Resource https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-...
62
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 21/34 · High
Exposure 9/34 · Low