Observable Response Discrepancy in SonicWall SMA 1000 - CVE-2026-4113
Published: April 8, 2026
Vulnerability identifier: #VU125517
CSH Severity: Low
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-4113
CWE-ID: CWE-204
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to enumerate SSL VPN user credentials.
The vulnerability exists due to observable response discrepancy in the authentication mechanism when handling authentication requests. A remote attacker can send crafted authentication attempts to enumerate SSL VPN user credentials.
Affected software
SonicWall SMA 1000
How to mitigate CVE-2026-4113
Install security update from vendor's website.
SonicWall SMA 1000 - addressed in versions 12.4.3-03387, 12.5.0-02624