CVE-2021-36809

Description

A local attacker can overwrite arbitrary files on the system with VPN client logs using administrator privileges, potentially resulting in a denial of service and data loss, in all versions of Sophos SSL VPN client.

6.1

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.05%

Vendor Advisory sophos.com

Affected: Sophos SSL VPN client

References

Link	Tags
https://www.sophos.com/en-us/security-advisories/sophos-sa-20220303-sslvpn-local-dos	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-36809?: CVE-2021-36809 has been scored as a medium severity vulnerability.
How to fix CVE-2021-36809?: To fix CVE-2021-36809, 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-2021-36809 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-36809 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-2021-36809?: CVE-2021-36809 affects Sophos SSL VPN client.

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