CVE-2026-41286 PUBLISHED

Stack-based Buffer Overflow in WatchGuard Agent Discovery Service on Windows Causes Denial of Service - Variant B

Assigner: WatchGuard
Reserved: 20.04.2026 Published: 06.05.2026 Updated: 06.05.2026

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.

Metrics

CVSS 4.0

CVSS Vector: 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
CVSS Score: 7.1

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Adjacent	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	High	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	WatchGuard Technologies
Product	WatchGuard Agent
Versions	Default: unaffected affected from 0 to 1.25.03.0000 (excl.)

References

https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00011

Problem Types

CWE-121 Stack-based Buffer Overflow CWE

Impacts

CAPEC-100 Overflow Buffers