EUVD-2026-27834CVSS VectorNVD
CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/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
Lifecycle Timeline
2DescriptionNVD
Stack-based Buffer Overflow vulnerability in the WatchGuard Agent discovery service on Windows allows Overflow Buffers. An unauthenticated attacker on the same local network could exploit this vulnerability to crash the agent service.
AnalysisAI
Stack-based buffer overflow in WatchGuard Agent discovery service on Windows enables adjacent attackers without authentication to crash the agent via crafted network packets. CVSS 7.1 (High) reflects adjacent network attack vector with high integrity impact. …
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RemediationAI
Within 24 hours: Inventory all Windows systems running WatchGuard Agent and identify those on network segments with potential adjacent attackers (guest networks, IoT networks, or untrusted VLANs). Within 7 days: Isolate affected agents on high-risk network segments or implement network-level filtering to restrict discovery service traffic (UDP/TCP discovery ports) to trusted endpoints only. …
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