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Vulnerabilities

Vulnerability · CVE-2026-41286

Stack-based Buffer Overflow vulnerability in the WatchGuard Agent discovery service on Windows allows Overflow Buffers.

Published May 6, 2026 · catalog updated Aug 10, 2026 · Stack-based Buffer Overflow vulnerability

Check if you run it

No confirmed exploitation is on record for CVE-2026-41286. EPSS is 0.35%. Act only if a listed version of Stack-based Buffer Overflow vulnerability is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Stack-based Buffer Overflow vulnerability).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.1
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.35%
Remediation
Advisory link
Affected products
cpe 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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe watchguard/agentversion unspecified

How to fix CVE-2026-41286

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-41286. EPSS is 0.35%. Act only if a listed version of Stack-based Buffer Overflow vulnerability is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-121: Stack-based Buffer Overflow. EPSS 0.35%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Windows security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. May 6, 2026 · NIST NVD

    Detected

    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.

  2. Aug 10, 2026 · NIST NVD

    Updated

    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.

Sources

  • CVE.orgVulnerability recordCVE-2026-41286

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-41286

    30-day exploitation probability 0.3%

    first.org
  • NIST NVDVulnerability recordCVE-2026-41286

    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.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.