External risk intelligence

Adobe Connect Code Injection Vulnerability Allows Arbitrary Code Execution.

CVE advisorySeverity: CRITICAL (CVSS 9.6)

CVE-2026-48360

Adobe Connect is a web-based conferencing and collaboration platform designed to be accessed over the network, often by external users or participants. Because it functions as an internet-facing web application and remote service, it is commonly deployed in a manner that makes it reachable from the public internet.

Code Injection

Halo Surface Signal: 4 out of 5 — likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

This advisory details a critical vulnerability in Adobe Connect that could allow an attacker to execute arbitrary code on a user's machine. Exploitation requires a user to interact with a malicious link or web page, and the vulnerability could lead to the execution of unauthorized commands within the user's current session.

Code injection flaw in Adobe Connect.
Could lead to unauthorized code execution.
Confirm relevance and potential exposure.

Attack Path

How an attacker could exploit the issue

An attacker could trick a user into visiting a malicious link or a compromised webpage to trigger a code injection vulnerability in Adobe Connect. This could allow the attacker to run arbitrary code on the user's system.

Attacker requires unauthenticated network access.
Victim must visit a malicious URL or webpage.
Risk of arbitrary code execution on user's system.

Live Threat

Current exploitation, exposure, and threat context

A critical code injection vulnerability in Adobe Connect could allow an unauthenticated attacker to execute arbitrary code on a user's system, provided the user interacts with a specially crafted URL or a compromised web page. This could lead to the compromise of the current user's context, potentially affecting system data and user data accessible within that context.

System data and user data.
Malicious URL or web page interaction.
Arbitrary code execution in user context.

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability in Adobe Connect requires careful triage by teams managing web applications and user-facing services. Initial steps should focus on pinpointing all instances of Adobe Connect within your environment, assessing their exposure to external users or untrusted internal networks, and confirming their business criticality. Once accountable owners are identified, a remediation plan, prioritizing the most exposed or critical systems, should be developed, coordinating with vendor support as needed.

Application owners and infrastructure teams.
Verify external access and user interaction points.
Plan coordinated remediation based on risk.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

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Frequently asked questions

What is Adobe Connect?

Adobe Connect is a web-based software platform used for remote conferencing, virtual classrooms, and digital collaboration. It allows participants to join meetings and share content over the network, making it a common tool for organizations that require real-time communication between users, often involving both internal staff and external guests who join sessions through their web browsers.

What does the code injection vulnerability in CVE-2026-48360 mean?

This vulnerability is classified as Improper Control of Generation of Code (CWE-94). It means the software does not properly filter or handle input, allowing an attacker to inject and execute their own unauthorized commands. When this happens, those commands run with the permissions of the person currently using the application, potentially giving the attacker the ability to perform actions as if they were that user.

How is this vulnerability triggered?

The flaw is triggered when a user interacts with a malicious link or visits a compromised web page while using the application. It does not trigger automatically through background network traffic alone; it specifically requires the victim to perform an action, such as clicking a URL, which then causes the software to inadvertently process the injected code.

Why should I care if my Adobe Connect instance is internet-facing?

Halo Surface Signal notes that Adobe Connect is designed as a web-based service frequently accessed over the public internet by various participants. Because it is reachable from the outside, the likelihood of a user being sent a malicious link is higher compared to services restricted only to a private, internal-only network, increasing the overall risk profile.

What should I do first to manage this threat?

Begin by identifying every instance of Adobe Connect deployed across your environment. Once you have a list, evaluate which instances are accessible to external users versus those on internal networks, and determine their business importance. Use this information to coordinate with the application owners to plan a remediation strategy that prioritizes the most accessible and critical systems.

References

www.adobe.com/trust/security/products/connect/apsb26-182.html

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.