CVE-2021-20027

A buffer overflow vulnerability in SonicOS allows a remote attacker to cause a Denial of Service (DoS) by sending a specially crafted request. This vulnerability affects SonicOS Gen5, Gen6, Gen7 platforms, and SonicOSv virtual firewalls.
Classic Buffer Overflow
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
sonicwallCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 61%
VendorProductVersion
sonicwallsonicos
𝑥
≤ 7.0.1-r1262
sonicwallsonicos
𝑥
≤ 7.0.1-r.1219
sonicwallsonicos
𝑥
≤ 7.0.1-r514
sonicwallsonicos
𝑥
≤ 5.9.1.13
sonicwallsonicos
𝑥
≤ 6.5.1.12
sonicwallsonicos
𝑥
≤ 6.5.4.7
sonicwallsonicos
*
sonicwallsonicos
𝑥
≤ 6.0.5.3-94o
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0016
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0016