CVE-2021-20027

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.42%
Vendor Advisory sonicwall.com
Affected: SonicWall SonicOS
Published at:
Updated at:

References

Link Tags
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0016 mitigation vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-20027?
CVE-2021-20027 has been scored as a high severity vulnerability.
How to fix CVE-2021-20027?
To fix CVE-2021-20027, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-20027 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-20027 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-20027?
CVE-2021-20027 affects SonicWall SonicOS.
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