What is the CVSS score of CVE-2026-0793?

CVE-2026-0793 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.5%.

How to fix or mitigate CVE-2026-0793?

Within 24 hours: Inventory all ALGO 8180 devices in production and isolate them to restricted network segments; disable InformaCast functionality if operationally feasible. Within 7 days: Implement network-based access controls limiting device connectivity to trusted sources only; establish 24/7 monitoring for exploitation attempts. Within 30 days: Evaluate replacement devices or alternative solutions; contact ALGO for patch availability and timeline; conduct incident response tabletop for emergency communication failure scenarios.

8180 Ip Audio Alerter Firmware CVE-2026-0793

CRITICAL

Heap-based Buffer Overflow (CWE-122)

2026-01-23 zdi-disclosures@trendmicro.com

RCE Buffer Overflow Golang Heap Overflow 8180 Ip Audio Alerter Firmware Algosolutions

9.8

CVSS 3.1 · NVD

View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

Access

Send crafted network packet to InformaCast
Exploit

Trigger heap buffer overflow
Impact

Execute arbitrary code on device

Vulnerability Assessment

Weakness	CWE CWE-122 OWASP Top 10:2025 A06:2021 - Vulnerable and Outdated Components ASVS 5.0 V15 - Secure Coding and Architecture Heap buffer bounds checking MITRE ATT&CK 1 technique across 1 tactic: Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Exploitation Conditions	ALGO 8180 IP Audio Alerter with InformaCast functionality enabled. Remote unauthenticated exploitation via network access without authentication or user interaction required.
Impact	CVSS 9.8, EPSS 0.52%. InformaCast is a mass notification system used in hospitals, universities, and corporate campuses. Heap overflows provide reliable exploitation via heap spray.
Exploit ScenarioDerived	An attacker sends a crafted InformaCast message to the ALGO 8180, triggering the heap overflow and gaining control of the device to disable notifications or broadcast false alerts.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.

No patch listed yet 0.5% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

ALGO 8180 has a heap-based buffer overflow in InformaCast message processing enabling remote code execution through the emergency notification protocol.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 21:54 CVSS 9.8

Heap overflow in ALGO 8180 InformaCast handler enables RCE via notification protocol.

RemediationAI

Update firmware. Segment InformaCast traffic from general network access.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The ALGO 8180's InformaCast message handler has a CWE-122 heap buffer overflow when processing emergency broadcast messages, allowing remote code execution through crafted notification payloads.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

DescriptionCVE.org

ALGO 8180 IP Audio Alerter InformaCast Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of ALGO 8180 IP Audio Alerter devices. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the InformaCast functionality. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the device. Was ZDI-CAN-28302.

Executive ViewAI

Why It Matters

A critical remote code execution vulnerability (CVSS 9.8) affects ALGO 8180 IP Audio Alerter devices with no available patch, allowing unauthenticated attackers to gain complete system control. Organizations using these devices for emergency communications face immediate risk of system compromise, potential facility disruption, and loss of critical alerting capabilities.

Business Impact: Severe

Compensating Controls

Disable InformaCast feature if alternative alerting exists; implement strict network segmentation restricting device access to authorized management networks only; deploy WAF/IDS rules to detect heap overflow exploit patterns; require VPN for any remote device management; implement egress filtering to prevent data exfiltration; increase logging and monitoring for suspicious device behavior; maintain air-gapped backup communication systems.

Threat Intelligence Overview

EPSS Score

0.5%

Top 33% exploitable

Data Quality

3 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity CRITICAL

CISA KEV No

Public POC No

EPSS 0.5%

Patch available No

Active threat No

Deciding rule

CRITICAL severity

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Out-of-Cycle

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact

Very High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +1

CVSS: +49

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Buffer Overflow HIGH

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Heap Overflow HIGH

A heap overflow occurs when a program writes data beyond the bounds of a buffer allocated in the heap memory region.

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.