CVE-2025-34036
9.8
CRITICAL · CVSS 3.1 · EPSS 30.9% (pctl 98)
Patch early
EPSS 30.9% — above the 10% action threshold.
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.
Scoring
| CVSS | 9.8 (CRITICAL, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 30.92% — more likely to be exploited than 98% of all CVEs |
| Weakness | CWE-78 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2025-06-24 |
| Last modified | 2026-06-17 |
Affected (40)
| Vendor | Product |
|---|---|
| tvt | td-2104ts-hc |
| tvt | td-2104ts-hc firmware |
| tvt | td-2104ts-hp |
| tvt | td-2104ts-hp firmware |
| tvt | td-2108ts-cl |
| tvt | td-2108ts-cl firmware |
| tvt | td-2108ts-cl-a |
| tvt | td-2108ts-cl-a firmware |
| tvt | td-2108ts-hc |
| tvt | td-2108ts-hc firmware |
| tvt | td-2108ts-hp |
| tvt | td-2108ts-hp firmware |
| tvt | td-2116te-hp |
| tvt | td-2116te-hp firmware |
| tvt | td-2116ts-cl |
| tvt | td-2116ts-cl firmware |
| tvt | td-2116ts-hc |
| tvt | td-2116ts-hc firmware |
| tvt | td-2704ts-hc |
| tvt | td-2704ts-hc firmware |
| tvt | td-2704ts-hp |
| tvt | td-2704ts-hp firmware |
| tvt | td-2708te-hp |
| tvt | td-2708te-hp firmware |
| tvt | td-2708ts-hc |
| tvt | td-2708ts-hc firmware |
| tvt | td-2708ts-hp |
| tvt | td-2708ts-hp firmware |
| tvt | td-2716tc-hc |
| tvt | td-2716tc-hc firmware |
| tvt | td-2716td-hc |
| tvt | td-2716td-hc firmware |
| tvt | td-2716te-hc |
| tvt | td-2716te-hc firmware |
| tvt | td-2716te-hc-a |
| tvt | td-2716te-hc-a firmware |
| tvt | td-2732tc-hc |
| tvt | td-2732tc-hc firmware |
| tvt | td-2732td-hc |
| tvt | td-2732td-hc firmware |
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
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