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CVE-2025-34036

Shenzhen TVT CCTV-DVR Command Injection

Basic Information

CVE State
PUBLISHED
Reserved Date
April 15, 2025
Published Date
June 24, 2025
Last Updated
April 07, 2026
Vendor
Shenzhen TVT
Product
CCTV-DVR
Description
An OS command injection vulnerability exists in white-labeled DVRs manufactured by TVT, affecting a custom HTTP service called "Cross Web Server" that listens on TCP ports 81 and 82. The web interface fails to sanitize input in the URI path passed to the language extraction functionality. When the server processes a request to /language/[lang]/index.html, it uses the [lang] input unsafely in a tar extraction command without proper escaping. This allows an unauthenticated remote attacker to inject shell commands and achieve arbitrary command execution as root. Exploitation evidence was observed by the Shadowserver Foundation on 2025-02-06 UTC.

CVSS Scores

CVSS v4.0

10.0 - CRITICAL

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

SSVC Information

Exploitation
poc
Automatable
Yes
Technical Impact
total

Exploit Status

Exploited in the Wild
Yes (2026-01-10 00:00:00 UTC) Source

References

https://web.archive.org/web/20160322204109/http://www.kerneronsec.com/2016/02/remote-code-execution-in-cctv-dvrs-of.html https://www.exploit-db.com/exploits/39596 https://vulncheck.com/advisories/shenzhen-tvt-cctv-dvr-command-injection

Known Exploited Vulnerability Information

Source Added Date
The Shadowserver (via CIRCL) 2026-01-10 00:00:00 UTC

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Added to KEVIntel