[ CVE-2026-115495 · Published 27 Oct 2026 ]

Vulnerability in WatchGuard Mobile VPN with SSL Client

CVSS 5.7 EPSS <1%1 agency advisoryNo fix listed yet

[ Description ]Official description

Cleartext Transmission of Sensitive Information vulnerability in the WatchGuard Mobile VPN with SSL client for Windows allows a local attacker who can capture loopback traffic to obtain the user’s VPN username and password.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ Advisories ]Government CERT advisories

BSI CERT-Bund27 Oct 2026WID-SEC-2026-4209

WatchGuard Fireware OS: Multiple vulnerabilities Translated from German
CVE-2026-113881CVE-2026-103593CVE-2026-93434+15 more CVEs

[ References ]References

psirt.watchguard.com/CVE-2026-115495

[ Facts ]Key facts

CVE: CVE-2026-115495
EUVD: EUVD-2026-111145
Published: 27 Oct 2026, 16:17 UTC
Updated: 4 Nov 2026, 21:17 UTC
NVD status: Awaiting Analysis
CVSS 4.0: 5.7 Medium
CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Scored by 5d1c2695-1a31-4499-88ae-e847036fd7e3
EPSS: 0.08% chance of exploitation in 30 days · higher than <1% of CVEs
CISA SSVC: Exploitation: none · Automatable: no · Impact: partial
Weakness: CWE-319

[ Affected ]Affected products

WatchGuard Mobile VPN with SSL Client12.0 – < 2026.4

[ Description ]Official description

[ Fixes ]Fixes and patches

[ Advisories ]Government CERT advisories

WatchGuard Fireware OS: Multiple vulnerabilities Translated from German

[ References ]References