Path traversal in NetExtender for Linux - CVE-2026-66152
Published: August 26, 2026
Vulnerability identifier: #VU145834
CSH Severity: High
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-66152
CWE-ID: CWE-29
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to write arbitrary files as root.
The vulnerability exists due to path traversal in OPSWAT tarball when processing a crafted update archive. A remote attacker can supply a specially crafted tarball to write arbitrary files as root.
User interaction is required.
Affected software
NetExtender for Linux
How to mitigate CVE-2026-66152
Install security update from vendor's website.
NetExtender for Linux - update to 10.3.6-39