CVE-2020-5133

7.5 highEPSS 1.8%

High (7.5) in sonicwall. EPSS 1.8% chance of exploitation in the next 30 days.

A vulnerability in SonicOS allows a remote unauthenticated attacker to cause Denial of Service due to buffer overflow, which leads to a firewall crash. This vulnerability affected SonicOS Gen 6 version 6.5.1.12, 6.0.5.3, SonicOSv 6.5.4.v and Gen 7 version 7.0.0.0.

Severity

CVSS 3.1

7.5 high

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

EPSS: 1.8% chance of exploitation in the next 30 days; higher than 77% of CVEs (scores of 2026-10-31)
CWE: CWE-120
Published: 2020-10-12
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

sonicwall:sonicos
sonicwall:sonicosv

References

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2020-0008
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2020-0008

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