by Kastro
Paper/Archive/CVE-2025-34036

CVE-2025-34036

Shenzhen TVT CCTV-DVR — Shenzhen TVT CCTV-DVR Command Injection

EPSS 31%public exploitCVSS 10.0
critical.is priorityof 100
60
CVSS 10.0 (CNA)10.0 / 10 × 3030.0Not in CISA KEV+300.0EPSS percentile 98.3.983 × 2019.7Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
CCTV-DVRall versions–CNA

Scores by source

VulnCheck (CNA)10.0CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: total

References

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