CVE-2026-26461 Overview
CVE-2026-26461 is a command injection vulnerability in the web management interface of the Aver PTC320UV2 camera, firmware version 0.1.0000.65. An unauthenticated attacker can send a crafted web request to execute arbitrary operating system commands on the device. The flaw is reachable over the network without user interaction or authentication, making it accessible to any attacker who can connect to the management interface. The vulnerability is tracked under CWE-77: Improper Neutralization of Special Elements used in a Command.
Critical Impact
Unauthenticated remote attackers can inject and execute arbitrary commands on affected Aver PTC320UV2 devices through the web management interface.
Affected Products
- Aver PTC320UV2 firmware version 0.1.0000.65
- Aver PTC320UV2 web management interface
- Deployments exposing the camera management interface to untrusted networks
Discovery Timeline
- 2026-05-01 - CVE-2026-26461 published to NVD
- 2026-05-07 - Last updated in NVD database
Technical Details for CVE-2026-26461
Vulnerability Analysis
The vulnerability resides in the web management interface of the Aver PTC320UV2 pan-tilt-zoom camera. The interface accepts user-supplied input in a web request and passes it to an underlying operating system command without proper neutralization of shell metacharacters. An attacker can append shell separators or substitution syntax to inject additional commands that the device executes with the privileges of the web service.
Because exploitation requires no credentials, any network-reachable attacker can issue the crafted request. The Exploit Prediction Scoring System places this issue in a higher exploitation-likelihood band than the majority of disclosed CVEs, reflecting its low complexity and lack of authentication requirement. Public technical details are available in the GitHub CVE-2026-26461 disclosure.
Root Cause
The root cause is improper neutralization of special elements used in an OS command [CWE-77]. The web management interface concatenates attacker-controlled parameters into a command string that is passed to a shell or system call. Without input validation or argument escaping, metacharacters such as ;, |, &, and backticks alter the intended command structure and introduce attacker-supplied commands.
Attack Vector
The attack vector is network-based. An unauthenticated attacker sends a crafted HTTP request to a vulnerable endpoint on the camera's web management interface. The injected payload executes as part of the command pipeline on the device. Successful exploitation can disclose configuration data, modify device settings, or pivot into the broader network from the compromised camera.
No verified proof-of-concept code is reproduced here. Refer to the linked disclosure for endpoint and payload specifics.
Detection Methods for CVE-2026-26461
Indicators of Compromise
- HTTP requests to the PTC320UV2 web management interface containing shell metacharacters such as ;, |, &&, $(), or backticks in URL parameters or POST bodies.
- Unexpected outbound connections originating from the camera's management IP address.
- Modifications to device configuration, firmware, or user accounts that do not match operator activity.
Detection Strategies
- Inspect web traffic destined for Aver PTC320UV2 devices for command-injection patterns and anomalous parameter values.
- Apply network intrusion detection signatures targeting OS command metacharacters in HTTP requests to embedded device management ports.
- Correlate camera-originating outbound traffic with management-interface request logs to identify post-exploitation behavior.
Monitoring Recommendations
- Centralize logs from network devices and proxies that front IoT video equipment for retrospective hunting.
- Alert on any administrative HTTP request to PTC320UV2 endpoints from sources outside an approved management subnet.
- Track device firmware versions and management interface exposure across the asset inventory.
How to Mitigate CVE-2026-26461
Immediate Actions Required
- Remove the PTC320UV2 web management interface from internet exposure and restrict it to a dedicated management VLAN.
- Place affected cameras behind a firewall or reverse proxy that enforces source IP allow-listing for administrative access.
- Audit device logs and configurations for evidence of unauthorized command execution prior to remediation.
Patch Information
No vendor patch advisory is referenced in the published CVE record at the time of writing. Operators should monitor the Aver product downloads page for PTC320UV2 for firmware updates superseding 0.1.0000.65 and apply them as soon as they become available.
Workarounds
- Segment Aver PTC320UV2 cameras onto an isolated network with no direct internet routing.
- Enforce network access control lists permitting management traffic only from designated administrative hosts.
- Disable the web management interface when not actively required for configuration changes.
- Monitor for and block HTTP requests containing shell metacharacters directed at camera management endpoints.
# Example: restrict access to the camera management interface with iptables
iptables -A INPUT -p tcp --dport 80 -s 10.0.10.0/24 -d <camera_ip> -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -d <camera_ip> -j DROP
iptables -A INPUT -p tcp --dport 443 -s 10.0.10.0/24 -d <camera_ip> -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -d <camera_ip> -j DROP
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
