{"cve":"CVE-2025-34036","nvd":{"published":"2025-06-24T01:15:24.903","modified":"2026-06-17T09:13:21.060","status":"Modified","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_v4":{"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","score":10.0},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-78"],"references":["https://vulncheck.com/advisories/shenzhen-tvt-cctv-dvr-command-injection","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://web.archive.org/web/20160322204109/http://www.kerneronsec.com/2016/02/remote-code-execution-in-cctv-dvrs-of.html"],"products":["tvt:td-2004ts-cl-c_firmware","tvt:td-2004ts-cl_firmware","tvt:td-2008ts-cl_firmware","tvt:td-2104ts-cl-a_firmware","tvt:td-2104ts-cl_firmware","tvt:td-2104ts-hc_firmware","tvt:td-2104ts-hp_firmware","tvt:td-2108ts-cl-a_firmware","tvt:td-2108ts-cl_firmware","tvt:td-2108ts-hc_firmware","tvt:td-2108ts-hp_firmware","tvt:td-2116te-hp_firmware","tvt:td-2116ts-cl_firmware","tvt:td-2116ts-hc_firmware","tvt:td-2704ts-hc_firmware","tvt:td-2704ts-hp_firmware","tvt:td-2708te-hk_firmware","tvt:td-2708te-hp_firmware","tvt:td-2708ts-hc_firmware","tvt:td-2708ts-hp_firmware","tvt:td-2716tc-hc_firmware","tvt:td-2716tc-hp_firmware","tvt:td-2716td-hc_firmware","tvt:td-2716te-hc-a_firmware","tvt:td-2716te-hc_firmware","tvt:td-2716te-hp-a_firmware","tvt:td-2716te-hp_firmware","tvt:td-2732tc-hc_firmware","tvt:td-2732td-hc_firmware","tvt:td-2932td-hp_firmware"],"source":"nvd","synced_at":"2026-10-19T22:03:23.287444849+00:00"},"epss":{"cve":"CVE-2025-34036","score":0.30915,"percentile":0.98257,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}