CVE-2026-41287

7.1 HIGH 0.3% exploit odds Fix listed Memory safety OS & kernel

What it is

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.

At a glance

Exploitability: Can be exploited from the same network segment without logging in. High risk of service disruption.
Exploit odds: 0.3% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2026-05-06 15:16 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-10-26 19:10 UTC Last updatedMost recent change to the record

Details

Published: 2026-05-06 15:16 UTC
Last modified: 2026-10-26 19:10 UTC
Exploit probability: 0.3% · EPSS, next 30 days
Weakness: CWE-121
Record status: Modified

Affected

Watchguard Agent < 1.25.03.0000

Attack profile CVSS 4.0 · 7.1

Attack vector: Adjacent network
Complexity: Low
Attack requirements: None
Privileges needed: None
User interaction: None
Confidentiality: None
Integrity: None
Availability: High

Raw vector

CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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

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Fix and advisories

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

References

NVD record · CVE.org record