CVE-2026-13086— Fireware OS Stack-Based Buffer Overflow in Mobile Security epm Endpoint
Quick assessment
Affected
WatchGuard Fireware OS
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
WatchGuard Fireware OS 中已废弃的“Mobile Security”功能所使用的 EPM（Endpoint Protection Manager）服务中存在一个基于栈的缓冲区溢出漏洞，使得未经身份验证的远程攻击者能够执行任意代码。
Possible ATT&CK Techniques 1 AI
T1203.001
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I. Basic Information for CVE-2026-13086
Vulnerability Information
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Vulnerability Title
Fireware OS Stack-Based Buffer Overflow in Mobile Security epm Endpoint
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| WatchGuard | Fireware OS | 2025.0 ~ 2026.2.2 | - |
|
| WatchGuard | Fireware OS | 12.0 ~ 12.5.20 | - |
|
II. Public POCs for CVE-2026-13086
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-13086 (1)
Same Patch Batch · WatchGuard · 2026-08-27 · 29 CVEs total
| CVE-2026-19315 | 9.3 CRITICAL | Fireware OS Pre-Authentication Type Confusion in iked Allows Remote Code Execution |
| CVE-2026-19313 | 9.3 CRITICAL | Fireware OS Pre-Authentication Heap Buffer Overflow in iked Allows Remote Code Execution |
| CVE-2026-19318 | 9.3 CRITICAL | Fireware OS Pre-Authentication Stack Buffer Overflow in iked Allows Remote Code Execution |
| CVE-2026-78174 | 9.3 CRITICAL | WatchGuard Dimension Session Hijack via Exposed Session Tokens in Diagnostic Logs |
| CVE-2026-78009 | 8.7 HIGH | Fireware OS Out-of-Bounds Read in iked Allows Unauthenticated Denial of Service (DoS) |
| CVE-2026-13108 | 8.7 HIGH | Dimension Denial-of-Service |
| CVE-2026-19314 | 8.7 HIGH | Fireware OS Integer Underflow in iked Allows Unauthenticated Denial of Service (DoS) |
| CVE-2026-19316 | 8.7 HIGH | Fireware OS Pre-Authentication Double Free in iked Allows Denial of Service (DoS) |
| CVE-2026-19317 | 8.7 HIGH | Fireware OS Pre-Authentication Out-of-Bounds Read in iked Allows Denial of Service (DoS) |
| CVE-2026-78010 | 8.7 HIGH | Fireware OS Stack-Based Buffer Overflow in iked Allows Unauthenticated Denial of Service |
| CVE-2026-78011 | 8.7 HIGH | Fireware OS Integer Underflow in Iked Allows Unauthenticated Denial of Service (DoS) |
| CVE-2026-78008 | 8.6 HIGH | Fireware OS Authenticated Buffer Overflow in wgagent |
| CVE-2026-78614 | 8.6 HIGH | Dimension SQL Injection in Audit Report |
| CVE-2026-78612 | 8.6 HIGH | Dimension SQL Injection in Scheduled Report |
| CVE-2026-78613 | 8.6 HIGH | Dimension SQL Injection in Log Viewer |
| CVE-2026-78610 | 8.4 HIGH | Dimension CSRF Vulnerability in Administrator Passphrase Change Endpoint |
| CVE-2026-81851 | 6.9 MEDIUM | Fireware OS Heap-Based Buffer Overflow in iked Allows Denial of Service |
| CVE-2026-78618 | 6.9 MEDIUM | Dimension Business Logic Flaw Allows Chained Backend Object Operations |
| CVE-2026-78617 | 6.3 MEDIUM | WatchGuard Dimension Web UI Authentication Brute-Force Due to Missing Rate Limiting |
| CVE-2026-78495 | 5.3 MEDIUM | Dimension Server-Side Request Forgery via Remote Backup Connection Test |
Showing top 20 of 29 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Fireware OS
-
CVE-2026-19315
Fireware OS Pre-Authentication Type Confusion in iked Allows -
CVE-2026-78008
Fireware OS Authenticated Buffer Overflow in wgagent -
CVE-2026-19318
Fireware OS Pre-Authentication Stack Buffer Overflow in iked -
CVE-2026-78011
Fireware OS Integer Underflow in Iked Allows Unauthenticated -
CVE-2026-78009
Fireware OS Out-of-Bounds Read in iked Allows Unauthenticate
Same vendor: WatchGuard
-
CVE-2026-78616
Dimension Stored XSS via Trusted CA Certificate Configuratio -
CVE-2026-78498
Dimension Server-Side Request Forgery via Email Server Test -
CVE-2026-78612
Dimension SQL Injection in Scheduled Report -
CVE-2026-78195
Dimension Stored XSS via Backup Historical Data Feature -
CVE-2026-13108
Dimension Denial-of-Service
Same weakness: CWE-121
-
CVE-2026-78010
Fireware OS Stack-Based Buffer Overflow in iked Allows Unaut -
CVE-2026-19318
Fireware OS Pre-Authentication Stack Buffer Overflow in iked -
CVE-2026-67560
Stack-based Buffer Overflow in Bendix EC80 Brake ECU -
CVE-2026-21807
HCL BigFix Quantum Risk Analyzer is affected by a stack-base -
CVE-2026-68863
Dell PowerProtect One 20.1.0.0以下栈溢出致DoS
V. Comments for CVE-2026-13086
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