CVE-2021-36809 : A local attacker can overwrite arbitrary files on the system with VPN client logs using administrator privileges, potent

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.

Published 2022-03-08 00:15:08

Updated 2022-07-12 17:42:04

Source Sophos Limited

View at NVD, CVE.org

Vulnerability category: Denial of service

Exploit prediction scoring system (EPSS) score for CVE-2021-36809

EPSS FAQ

0.04%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 6 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-36809

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
3.6	LOW	AV:L/AC:L/Au:N/C:N/I:P/A:P	3.9	4.9	NIST
Access Vector: Local Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: Partial
6.0	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H	0.8	5.2	NIST
Attack Vector: Local Attack Complexity: Low Privileges Required: High User Interaction: None Scope: Unchanged Confidentiality: None Integrity: High Availability: High
6.1	MEDIUM	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H	1.8	4.2	Sophos Limited
Attack Vector: Local Attack Complexity: Low Privileges Required: Low User Interaction: None Scope: Unchanged Confidentiality: None Integrity: Low Availability: High

Products affected by CVE-2021-36809

Sophos » Ssl Vpn Client » Version: N/A For Windows
cpe:2.3:a:sophos:ssl_vpn_client:-:*:*:*:*:windows:*:*
Matching versions

Vulnerability Details : CVE-2021-36809

Exploit prediction scoring system (EPSS) score for CVE-2021-36809

CVSS scores for CVE-2021-36809

References for CVE-2021-36809

Products affected by CVE-2021-36809