CVE-2026-41287

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 v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://psirt.watchguard.com/CVE-2026-41287
https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00010	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:watchguard:agent:*:*:*:*:*:windows:*:*

History

26 Oct 2026, 19:10

Type	Values Removed	Values Added
Summary		(es) Vulnerabilidad de desbordamiento de búfer basado en pila en el servicio de descubrimiento del Agente de WatchGuard en Windows permite desbordamientos de búfer. Un atacante no autenticado en la misma red local podría explotar esta vulnerabilidad para bloquear el servicio del agente.

Information

Published : 2026-05-06 15:16

Updated : 2026-10-26 19:10

NVD link : CVE-2026-41287

Mitre link : CVE-2026-41287

CVE.ORG link : CVE-2026-41287

JSON object : View

Products Affected

watchguard

agent

CWE

CWE-121

Stack-based Buffer Overflow

{"id": "CVE-2026-41287", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-41287", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-05-06T14:49:25.743974Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "ADJACENT_NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}], "cvssMetricV40": [{"type": "Secondary", "source": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 7.1, "Automatable": "NOT_DEFINED", "attackVector": "ADJACENT", "baseSeverity": "HIGH", "valueDensity": "NOT_DEFINED", "vectorString": "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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "NONE", "vulnIntegrityImpact": "NONE", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "affectedData": [{"vendor": "WatchGuard", "product": "WatchGuard Agent", "versions": [{"status": "affected", "version": "1.0.0.0", "lessThan": "1.25.03.0000", "versionType": "semver"}], "platforms": ["Windows"], "defaultStatus": "unaffected"}]}], "published": "2026-05-06T15:16:10.767", "references": [{"url": "https://psirt.watchguard.com/CVE-2026-41287", "source": "5d1c2695-1a31-4499-88ae-e847036fd7e3"}, {"url": "https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2026-00010", "tags": ["Vendor Advisory"], "source": "5d1c2695-1a31-4499-88ae-e847036fd7e3"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "5d1c2695-1a31-4499-88ae-e847036fd7e3", "description": [{"lang": "en", "value": "CWE-121"}]}], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Vulnerabilidad de desbordamiento de b\u00fafer basado en pila en el servicio de descubrimiento del Agente de WatchGuard en Windows permite desbordamientos de b\u00fafer. Un atacante no autenticado en la misma red local podr\u00eda explotar esta vulnerabilidad para bloquear el servicio del agente."}], "lastModified": "2026-10-26T19:10:00.163", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:watchguard:agent:*:*:*:*:*:windows:*:*", "vulnerable": true, "matchCriteriaId": "1D391721-7499-4701-A84D-C58CD093CCB0", "versionEndExcluding": "1.25.03.0000"}], "operator": "OR"}]}], "sourceIdentifier": "5d1c2695-1a31-4499-88ae-e847036fd7e3"}