← Vulnerability feed

Vulnerability record · CVE-2017-9828 · published 23 June 2017

CVE-2017-9828: VIVOTEK Network Cameras shell command injection in testserver.cgi

Vivotek · Network Camera Ib8369 Firmware

The testserver.cgi endpoint in the web service of most VIVOTEK Network Cameras passes the senderemail parameter to a shell without sanitization, allowing OS command injection. An unauthenticated remote attacker can run arbitrary shell commands as root, making this a full device compromise. The flaw is confirmed on IB8369, FD8164 and FD816BA, and other models with similar firmware may also be affected.

9.8 CVSS 3.0 Critical EPSS 82% · top 0.3% CWE-78 · OS command injection
9.8CVSS 3.0 base score, v2 10.0
82%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

'/cgi-bin/admin/testserver.cgi' of the web service in most of the VIVOTEK Network Cameras is vulnerable to shell command injection, which allows remote attackers to execute any shell command as root via a crafted HTTP request. This vulnerability is already verified on VIVOTEK Network Camera IB8369/FD8164/FD816BA; most others have similar firmware that may be affected. An attack uses shell metacharacters in the senderemail parameter.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Automated analysis

Generated by VULONE's analysis model from the NVD record, CISA KEV and EPSS data on 18 September 2026. Confidence: high.

critical priorityUnauthenticated remote root command execution with a CVSS score of 9.8 and very high EPSS probability makes this a top-priority exposure for any internet- or network-reachable VIVOTEK camera.

What it is

The testserver.cgi endpoint in the web service of most VIVOTEK Network Cameras passes the senderemail parameter to a shell without sanitization, allowing OS command injection. An unauthenticated remote attacker can run arbitrary shell commands as root, making this a full device compromise. The flaw is confirmed on IB8369, FD8164 and FD816BA, and other models with similar firmware may also be affected.

Impact

An attacker gains root-level command execution on the camera, enabling full control of the device, data theft, and use as a pivot into the network. Because commands run as root, persistence and firmware-level tampering are possible.

Attack surface

Reachable over the network through the camera's HTTP web service via a crafted request to /cgi-bin/admin/testserver.cgi using shell metacharacters in the senderemail parameter. The CVSS vector indicates no authentication and no user interaction are required.

Exploitation

Not listed in CISA KEV, but EPSS is very high (0.82455, 99.6th percentile), indicating strong likelihood of exploitation activity. The only references are third-party advisories describing the technique, with no vendor advisory or exploit tag in the record.

What to do

  • Apply the vendor firmware update for affected VIVOTEK camera models; if no patch is available, isolate or replace the devices.
  • Block or restrict external and untrusted access to camera web interfaces, especially /cgi-bin/admin/testserver.cgi, using firewall rules or a management VLAN.
  • Disable or restrict the camera web service where it is not required, and change default credentials.
  • Monitor vendor advisories for the affected models and confirm firmware versions against the vendor's fixed release.
  • Segment cameras from production networks so a compromised device cannot reach other systems.

Detection

  • Inspect HTTP request logs and IDS/IPS alerts for requests to /cgi-bin/admin/testserver.cgi, particularly with shell metacharacters in the senderemail parameter.
  • Monitor camera processes and outbound connections for unexpected shell activity or command-and-control traffic.
  • Alert on unusual outbound traffic from camera IP addresses, which normally should not initiate arbitrary connections.
  • Check camera firmware versions against the vendor's fixed release to identify unpatched devices.

This assessment is produced automatically and is not human-reviewed. Verify against the vendor advisory before acting on it.

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://blog.cal1.cn/post/An%20easy%20way%20to%20pwn%20most%20of%20the%20vivotek%20network%20cameras Third Party Advisory
https://blog.cal1.cn/post/An%20easy%20way%20to%20pwn%20most%20of%20the%20vivotek%20network%20cameras Third Party Advisory

Track CVE-2017-9828 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2017-9829VIVOTEK Network Cameras path traversal in downloadMedias.cgiThe downloadMedias.cgi endpoint in the web service of most VIVOTEK Network Cameras fails to sanitize ".." sequences in HTTP requests, allowing direct…EPSS 69%analysed8.8CVE-2026-53266Linux kernel ebtables SNAT out-of-bounds write in ARP rewriteThe ebtables SNAT target rewrites the ARP sender hardware address via skb_store_bits() without first making that range writable. When the ARP SHA byt…KEVEPSS 0.65%analysed8.8CVE-2026-87491Google Chrome V8 out-of-bounds write enables sandbox code executionChrome before 153.0.8010.36 contains an out-of-bounds write in the V8 JavaScript engine. A crafted HTML page can trigger the memory corruption, and b…KEVEPSS 3.1%analysed9.8CVE-2025-25249Fortinet FortiOS and FortiSwitchManager heap buffer overflow via crafted packetsA heap-based buffer overflow (CWE-122/CWE-787) in Fortinet FortiOS 6.4 through 7.6.3 and FortiSwitchManager 7.0 through 7.2.6 lets an unauthenticated…KEVEPSS 3.9%analysed7.8CVE-2026-83549SonicWall SMA1000 AMC OS Command InjectionThe SMA1000 Appliance Management Console contains an OS command injection flaw (CWE-78) that lets an authenticated administrator execute arbitrary op…KEVEPSS 11%analysed10.0CVE-2026-49869Kestra OSS auth bypass via path suffix match enables RCEKestra OSS AuthenticationFilter whitelists the public config endpoint using request.getPath().endsWith("/configs"), a suffix match instead of an exac…KEVEPSS 2.1%analysed7.8CVE-2026-53362Linux kernel IPv6 UDP paged allocation out-of-bounds write__ip6_append_data() in the Linux kernel mis-accounts fraggap on the paged-allocation path, leaving the linear skb area undersized while pagedlen is o…KEVEPSS 0.71%analysed7.8CVE-2022-0995Linux kernel watch_queue out-of-bounds writeThe Linux kernel's watch_queue event notification subsystem contains an out-of-bounds write (CWE-787) that can overwrite kernel state. A local user c…KEVEPSS 8.8%analysed

Source: NIST National Vulnerability Database (record CVE-2017-9828), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.