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CVE-2026-41287

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

Published: May 6, 2026Updated: May 11, 2026 Sources: CVE List NVDCWE-121
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
0.2%
Top 88.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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.

CVSS Vector Breakdown

AV:AAC:LPR:NUI:NS:UC:NI:NA:H
Exploitability
AV:AAttack Vector
Adjacent
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-121

Affected Products

WatchGuard AgentWatchGuardNetworking Infrastructure
agentwatchguardNetworking Infrastructure
watchguardcommercialUSNetworking Infrastructure

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00010
watchguard.com

Timeline

Published
May 6, 2026
Last Updated
May 11, 2026

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