CVE-2021-36809 describes a local privilege escalation vulnerability in all versions of the Sophos SSL VPN client. An attacker with administrator privileges can overwrite arbitrary system files with VPN client logs, leading to potential denial of service and data loss. This vulnerability has a CVSS score of 6.0 (Medium) due to its local attack vector and high impact on integrity and availability, but requires high privileges. There is currently no public exploit code available, nor is there evidence of active exploitation or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
Range not provided by sourceCPE matchmatch criteria | cpe:2.3:a:sophos:ssl_vpn_client:-:*:*:*:*:windows:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.