CVE-2026-2564: Intelbras VIP 3260 Z Auth Bypass Flaw

CVE-2026-2564 Overview

A critical weak password recovery vulnerability has been identified in Intelbras VIP 3260 Z IA firmware version 2.840.00IB005.0.T. This security flaw affects an unknown functionality within the /OutsideCmd file, enabling attackers to manipulate the password recovery mechanism. The vulnerability can be exploited remotely over the network, though exploitation complexity is considered high.

Critical Impact
Successful exploitation of this weak password recovery flaw could allow remote attackers to gain unauthorized access to affected Intelbras surveillance camera systems, potentially compromising video feeds, system configurations, and network security.

Affected Products

Intelbras VIP 3260 Z IA firmware version 2.840.00IB005.0.T

Discovery Timeline

2026-02-16 - CVE-2026-2564 published to NVD
2026-02-18 - Last updated in NVD database

Technical Details for CVE-2026-2564

Vulnerability Analysis

This vulnerability is classified as CWE-640 (Weak Password Recovery Mechanism for Forgotten Password). The flaw exists within the /OutsideCmd endpoint of the Intelbras VIP 3260 Z IA IP camera, which handles password recovery functionality. Due to improper implementation of the password recovery process, attackers can manipulate requests to this endpoint to bypass security controls or recover credentials without proper authorization.

The network-accessible nature of this vulnerability means that any device exposed to the internet or accessible from an untrusted network segment is at risk. While the attack complexity is noted as high, successful exploitation could result in complete compromise of confidentiality, integrity, and availability of the affected device.

Root Cause

The root cause of CVE-2026-2564 lies in the weak implementation of the password recovery mechanism within the /OutsideCmd file. The password recovery functionality fails to properly validate user identity or implement sufficient security controls before allowing password reset or recovery operations. This design flaw allows attackers to abuse the recovery mechanism to gain unauthorized access to the device.

Attack Vector

This vulnerability is exploitable remotely over the network without requiring authentication or user interaction. An attacker can target the /OutsideCmd endpoint with specially crafted requests to manipulate the password recovery process. While the attack is described as highly complex, threat actors with sufficient knowledge of the device's firmware and recovery mechanisms could potentially:

Intercept or manipulate password recovery tokens
Bypass identity verification steps
Force password resets for legitimate users
Recover or reset administrator credentials

The vulnerability does not require any privileges on the target system, making it particularly dangerous for internet-exposed devices.

Detection Methods for CVE-2026-2564

Indicators of Compromise

Unusual HTTP requests targeting the /OutsideCmd endpoint from external IP addresses
Multiple failed or suspicious password recovery attempts in device logs
Unexpected password changes or lockouts for legitimate administrator accounts
Anomalous network traffic patterns to and from Intelbras VIP 3260 Z IA devices

Detection Strategies

Monitor network traffic for HTTP requests to /OutsideCmd paths on Intelbras camera devices
Implement intrusion detection rules to alert on password recovery endpoint abuse
Deploy network segmentation to isolate IoT and surveillance devices from untrusted networks
Review device logs regularly for signs of unauthorized access attempts or configuration changes

Monitoring Recommendations

Enable logging on all Intelbras VIP 3260 Z IA devices and forward logs to a centralized SIEM
Set up alerts for multiple password recovery requests within short time periods
Monitor for configuration changes on surveillance camera devices
Track authentication events and flag any successful logins following password recovery attempts

How to Mitigate CVE-2026-2564

Immediate Actions Required

Isolate affected Intelbras VIP 3260 Z IA devices from direct internet exposure using firewall rules
Implement network segmentation to restrict access to surveillance camera networks
Change all administrative passwords on affected devices immediately
Audit device access logs for any signs of unauthorized activity
Disable the password recovery feature if possible until a patch is applied

Patch Information

The vendor recommends upgrading the affected component to address this vulnerability. Organizations should contact Intelbras directly or check the official Intelbras support channels for firmware updates addressing CVE-2026-2564. Additional technical details are available through VulDB entry #346171.

Workarounds

Place affected devices behind a VPN or reverse proxy with strong authentication
Implement IP whitelisting to restrict access to management interfaces
Use firewall rules to block external access to the /OutsideCmd endpoint
Enable two-factor authentication if supported by the device firmware
Monitor and log all access to the device management interface

bash

# Example firewall rule to restrict access to the vulnerable endpoint
# Adjust interface and IP ranges according to your network configuration
iptables -A INPUT -p tcp --dport 80 -m string --string "/OutsideCmd" --algo bm -j DROP
iptables -A INPUT -p tcp --dport 443 -m string --string "/OutsideCmd" --algo bm -j DROP