CVE-2026-79396: Xiongmai IP Camera Auth Bypass Vulnerability

CVE-2026-79396 Overview

CVE-2026-79396 is a hardcoded credentials vulnerability affecting Xiongmai IP Camera XM530 firmware versions HMT.CM2005-v220608.1837 and earlier. The firmware stores static account credentials in unencrypted plaintext within bin/config.xml and compiles them into the Sofia executable. Remote attackers can extract these credentials and gain full administrative control over affected cameras. The vulnerability is classified under [CWE-798: Use of Hard-coded Credentials].

Critical Impact
Remote, unauthenticated attackers can obtain administrative control of affected IP cameras using static credentials embedded in the firmware, exposing video feeds and enabling device takeover.

Affected Products

Xiongmai IP Camera XM530 firmware HMT.CM2005-v220608.1837
Xiongmai IP Camera XM530 firmware versions earlier than HMT.CM2005-v220608.1837
Devices running the Sofia binary with the affected bin/config.xml configuration

Discovery Timeline

2026-09-11 - CVE-2026-79396 published to NVD
2026-09-14 - Last updated in NVD database

Technical Details for CVE-2026-79396

Vulnerability Analysis

The vulnerability originates in how Xiongmai XM530 firmware manages administrative authentication. Static account credentials are written in cleartext inside bin/config.xml on the device filesystem. The same credentials are also compiled directly into the Sofia executable that provides the camera's core services. Because the credentials are identical across all shipped units, extracting them from a single device or firmware image yields access to every deployment running the affected firmware.

An attacker with network access to the camera's management interface can authenticate as an administrator without exploiting a memory corruption or logic flaw. Once authenticated, the attacker gains full control over camera configuration, live video streams, and stored recordings. The device can also be repurposed as a foothold for lateral movement inside the network segment where it resides.

Root Cause

The root cause is an insecure design decision that ships production firmware with static administrative credentials. The credentials are neither randomized per device nor bound to hardware identifiers. Storing them unencrypted in bin/config.xml and embedding them in the Sofia binary means any party with access to the firmware image can recover them through static analysis or filesystem inspection.

Attack Vector

Exploitation requires network reachability to the camera's service ports and no user interaction. An attacker obtains the credentials by extracting the firmware image, parsing bin/config.xml, or running strings analysis against the Sofia binary. The recovered credentials are then submitted to the camera's authentication interface to obtain administrative sessions. For technical artifacts and analysis, see the CVE-2026-79396 research repository.

No verified proof-of-concept code is included here. Refer to the linked research for reproduction details.

Detection Methods for CVE-2026-79396

Indicators of Compromise

Successful administrative logins to Xiongmai XM530 cameras originating from unexpected external IP addresses.
New or modified accounts, ONVIF users, or RTSP stream subscribers created on affected devices.
Outbound connections from IP cameras to unknown command-and-control infrastructure or scanning targets.
Configuration changes to network settings, firmware update URLs, or NTP servers on Xiongmai devices.

Detection Strategies

Inventory network devices to identify Xiongmai XM530 cameras and verify firmware versions against HMT.CM2005-v220608.1837.
Inspect firmware images for the presence of credentials in bin/config.xml and static strings in the Sofia binary.
Monitor authentication logs on management platforms and NVRs for administrative sessions that do not correspond to authorized operators.

Monitoring Recommendations

Capture network flow telemetry from camera VLANs and alert on connections outside expected NVR and management endpoints.
Log and review all administrative interface access, including web UI, ONVIF, and proprietary Xiongmai protocols such as XMEye.
Alert on unexpected firmware modifications, reboots, or configuration exports from IP camera subnets.

How to Mitigate CVE-2026-79396

Immediate Actions Required

Isolate Xiongmai XM530 cameras on a dedicated VLAN with no direct internet exposure and restrict inbound traffic to authorized management hosts.
Block WAN access to camera management ports, including HTTP, RTSP, ONVIF, and the Xiongmai service ports used by Sofia.
Audit account activity on affected devices and remove any unauthorized users or configuration changes.

Patch Information

No vendor patch is referenced in the NVD entry at the time of publication. Consult the vendor for firmware updates that remove hardcoded credentials and enforce per-device unique authentication. Track the CVE-2026-79396 research repository and vendor channels for remediation guidance.

Workarounds

Place cameras behind a VPN or reverse proxy that enforces strong authentication before reaching the device.
Disable unused services on the camera, including UPnP, cloud connectivity, and remote management features that expose the authentication interface.
Replace affected devices with cameras that support per-device unique credentials and signed firmware updates where remediation is not feasible.

bash

# Example firewall rules to restrict camera management access
iptables -A FORWARD -s <management_subnet> -d <camera_subnet> -p tcp --dport 80 -j ACCEPT
iptables -A FORWARD -s <management_subnet> -d <camera_subnet> -p tcp --dport 34567 -j ACCEPT
iptables -A FORWARD -d <camera_subnet> -j DROP