---
title: "CVE-2026-112710: Fireware OS - Buffer Overflow"
description: "Fireware OS contains a heap-based buffer overflow caused by specially crafted responses from a controlled or intercepted Active Directory server, letting attackers cause denial of service or execute arbitrary code remotely, exploit requires control or interception of Active Directory traffic."
url: https://panop.io/threat-heartbeat/CVE-2026-112710/
---

# CVE-2026-112710 Fireware OS - Buffer Overflow

Fireware OS contains a heap-based buffer overflow caused by specially crafted responses from a controlled or intercepted Active Directory server, letting attackers cause denial of service or execute arbitrary code remotely, exploit requires control or interception of Active Directory traffic.

CVSS base score 9.2 /10

Critical

CISA KEV

Not listed

Public exploit

None known

EPSS

0.42% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-112710)

## Details

Type

Buffer Overflow

Impact

Remote Code Execution, Denial Of Service

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:P/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

Published

27 October 2026

Updated

29 October 2026

Weakness

[CWE-122](https://cwe.mitre.org/data/definitions/122.html)

## Vendor fix

Update to the latest Fireware OS version with the vulnerability patched.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-112710](https://nvd.nist.gov/vuln/detail/CVE-2026-112710)
- [https://psirt.watchguard.com/CVE-2026-112710](https://psirt.watchguard.com/CVE-2026-112710)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

Panop answers these inside your environment, for this CVE and every other finding.

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