CVE-2021-36809

MEDIUM
6
CVSS Score
Published: March 7, 2022 at 11:45 PM UTC
Updated: June 17, 2026 at 03:59 AM UTC
1 product affected across 1 vendorSSL VPN client

Using SSL VPN client by Sophos?

Get instant alerts when new vulnerabilities affect SSL VPN client - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM6
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v ≤ 2.3.8.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
NVD-CWE-noinfo

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card