CVE-2021-20027 — Classic Buffer Overflow in Sonicos

CWE-120 — Classic Buffer Overflow3 documents3 sources
Severity
7.5HIGHNVD
EPSS
0.4%
top 37.31%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Sonicwall Sonicos
Timeline
PublishedJun 14
Latest updateMay 24

Description

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages2 packages

▶NVDsonicwall/sonicos7.0.1-r1262+6
▶CVEListV5sonicwall/sonicos8 versions+7

🔴Vulnerability Details

2
GHSA
GHSA-j2f2-fj3p-8c94: A buffer overflow vulnerability in SonicOS allows a remote attacker to cause a Denial of Service (DoS) by sending a specially crafted request↗2022-05-24
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CVEList
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↗2021-06-14
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CVE-2021-20027 — Classic Buffer Overflow in Sonicos | cvebase