ZKTeco CCTV Cameras

Summary

CISA disclosed CVE-2026-8598, a critical authentication bypass vulnerability (CVSS 9.1) in ZKTeco SSC335-GC2063-Face CCTV cameras. An undocumented configuration export port accessible without authentication exposes camera credentials and system configuration details. ZKTeco has released firmware patch V5.0.1.2.20260421; users are urged to upgrade immediately.

Full text

ICS Advisory ZKTeco CCTV Cameras Release DateMay 19, 2026 Alert CodeICSA-26-139-04 Related topics: Industrial Control System Vulnerabilities, Industrial Control Systems View CSAF Summary Successful exploitation of this vulnerability could result in information disclosure, including capture of camera account credentials. The following versions of ZKTeco CCTV Cameras are affected: SSC335-GC2063-Face-0b77 Solution CVSS Vendor Equipment Vulnerabilities v3 9.1 ZKTeco ZKTeco CCTV Cameras Authentication Bypass Using an Alternate Path or Channel Background Critical Infrastructure Sectors: Commercial Facilities Countries/Areas Deployed: Worldwide Company Headquarters Location: China Vulnerabilities Expand All + CVE-2026-8598 An undocumented configuration export port is accessible on some models of ZKTeco CCTV cameras. This port does not require authentication and exposes critical information about the camera such as open services and camera account credentials. View CVE Details Affected Products ZKTeco CCTV Cameras Vendor:ZKTeco Product Version:ZKTeco SSC335-GC2063-Face-0b77 Solution: <V5.0.1.2.20260421 Product Status:known_affected Remediations MitigationZKTeco has patched this vulnerability in firmware version V5.0.1.2.20260421. ZKTeco recommends that users upgrade to firmware version V5.0.1.2.20260421 or later at their earliest opportunity. MitigationPlease see the security advisory from ZKTeco here: https://www.zkteco.com/en/announcement/23 for further information.https://www.zkteco.com/en/announcement/23 Relevant CWE: CWE-288 Authentication Bypass Using an Alternate Path or Channel Metrics CVSS Version Base Score Base Severity Vector String 3.1 9.1 CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Acknowledgments Souvik Kandar reported this vulnerability to CISA Legal Notice and Terms of Use This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy). Recommended Practices CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the Internet. Locate control system networks and remote devices behind firewalls and isolating them from business networks. When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices. CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures. CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies. CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets. Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies. Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents. No known public exploitation specifically targeting this vulnerability has been reported to CISA at this time. Revision History Initial Release Date: 2026-05-19 Date Revision Summary 2026-05-19 1 Initial Publication Legal Notice and Terms of Use This product is provided subject to this Notification and this Privacy & Use policy. Tags Sector: Commercial Facilities Sector Topics: Industrial Control System Vulnerabilities, Industrial Control Systems Please share your thoughts We recently updated our anonymous product survey; we welcome your feedback. Related Advisories May 28, 2026 ICS Advisory | ICSA-26-148-02 Jinan USR IOT Technology Limited (PUSR) USR-W610 RS232/485 to Wi-Fi/Ethernet Converter May 28, 2026 ICS Advisory | ICSA-26-148-01 MacGregor Voyage Data Recorder (VDR) G4e May 28, 2026 ICS Advisory | ICSA-26-148-08 XCharge C6 May 28, 2026 ICS Advisory | ICSA-26-148-03 ABB EIBPORT

Indicators of Compromise

• cve — CVE-2026-8598

Entities