CVE-2026-41287: CWE-121 in WatchGuard WatchGuard Agent
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.
AI Analysis
Technical Summary
This vulnerability (CWE-121) affects the WatchGuard Agent discovery service on Windows platforms. It is a stack-based buffer overflow that can be triggered by an unauthenticated attacker on the same local network, leading to a denial-of-service condition by crashing the agent service. The CVSS 4.0 vector indicates low attack complexity, no privileges or user interaction required, and high impact on availability. No official patch or remediation guidance has been published by WatchGuard as of the data provided.
Potential Impact
An attacker on the same local network can exploit this vulnerability to crash the WatchGuard Agent service, resulting in denial of service. There is no indication of code execution or data compromise from the provided information. The impact is limited to service disruption.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict local network access to the WatchGuard Agent discovery service to trusted hosts only to reduce exposure.
CVE-2026-41287: CWE-121 in WatchGuard WatchGuard Agent
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 v4.0
Score 7.1high
Affected software
WatchGuard
WatchGuard Agent
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-121) affects the WatchGuard Agent discovery service on Windows platforms. It is a stack-based buffer overflow that can be triggered by an unauthenticated attacker on the same local network, leading to a denial-of-service condition by crashing the agent service. The CVSS 4.0 vector indicates low attack complexity, no privileges or user interaction required, and high impact on availability. No official patch or remediation guidance has been published by WatchGuard as of the data provided.
Potential Impact
An attacker on the same local network can exploit this vulnerability to crash the WatchGuard Agent service, resulting in denial of service. There is no indication of code execution or data compromise from the provided information. The impact is limited to service disruption.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict local network access to the WatchGuard Agent discovery service to trusted hosts only to reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WatchGuard
- Date Reserved
- 2026-04-20T09:57:56.546Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 69fb4e88cbff5d8610f95c09
Added to database: 05/06/2026, 14:22:00 UTC
Last enriched: 08/11/2026, 15:10:24 UTC
Last updated: 09/10/2026, 21:17:10 UTC
Views: 194
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