Vulnerability-Lookup

CVE-2026-13086 (GCVE-0-2026-13086)

Vulnerability from cvelistv5 – Published: 2026-08-27 23:24 – Updated: 2026-08-29 03:55

Title

Fireware OS Stack-Based Buffer Overflow in Mobile Security epm Endpoint

Summary

A stack-based buffer overflow in the epm (Endpoint Protection Manager) service used by the deprecated Mobile Security feature in WatchGuard Fireware OS allows an unauthenticated remote attacker to execute arbitrary code.

Severity

9.3 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-28 00:00 UTC

CWE

Assigner

WatchGuard mitre root

References

1 reference

URL	Tags
https://psirt.watchguard.com/CVE-2026-13086	vendor-advisory

Impacted products

2 products

Vendor	Product	Version	CPE status
WatchGuard	Fireware OS	Affected: 2025.0 , < 2026.2.2 (custom) Affected: 12.0 , < 12.12.2 (custom)	guessed
WatchGuard	Fireware OS	Affected: 12.0 , < 12.5.20 (custom)	guessed

Credits

Mat Powell of TrendAI Zero Day Initiative

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-13086

Vulnerability from fkie_nvd - Published: 2026-08-28 02:16 - Updated: 2026-08-29 04:18

Severity

9.3 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Summary

References

	URL	Tags
	5d1c2695-1a31-4499-88ae-e847036fd7e3	https://psirt.watchguard.com/CVE-2026-13086

Impacted products

	Vendor	Product	Version

JSON

To clipboard

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  "lastModified": "2026-08-29T04:18:02.250",
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GHSA-C7M7-329M-9VPH

Vulnerability from github – Published: 2026-08-28 03:31 – Updated: 2026-08-28 03:31

Details

Severity

9.3 (Critical)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

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    "CVE-2026-13086"
  ],
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-28T02:16:20Z",
    "severity": "CRITICAL"
  },
  "details": "A stack-based buffer overflow in the epm (Endpoint Protection Manager) service used by the deprecated Mobile Security feature in WatchGuard Fireware OS allows an unauthenticated remote attacker to execute arbitrary code.",
  "id": "GHSA-c7m7-329m-9vph",
  "modified": "2026-08-28T03:31:22Z",
  "published": "2026-08-28T03:31:22Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-13086"
    },
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      "type": "WEB",
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    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/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",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-13086 (GCVE-0-2026-13086)

FKIE_CVE-2026-13086

GHSA-C7M7-329M-9VPH

Tags

Sightings

Nomenclature