CVE-2025-34036

10.0 CRITICAL 31% exploit odds No fix listed Injection Device

What it is

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.

At a glance

Exploitability: Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
Exploit odds: 30.9% chance of exploitation in the next 30 days (EPSS). Higher than most.
Fix: No patch or advisory is linked yet. Look at mitigations or restrict exposure.

Timeline

2025-04-15 19:15 UTC ReservedThe CVE id was reserved by its CNA
2025-06-24 01:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 09:13 UTC Last updatedMost recent change to the record

Why it ranks here

Exploited in the wild: no, CISA does not list it.
Exploit odds: 30.9% in the next 30 days (EPSS).
Severity: 10.0 CRITICAL (CVSS).
Fix: none linked yet, which raises it.

Details

Published: 2025-06-24 01:15 UTC
Last modified: 2026-06-17 09:13 UTC
Exploit probability: 30.9% · EPSS, next 30 days
Weakness: CWE-78 · OS command injection
Record status: Modified

Affected

Tvt td-2108ts-cl Firmware
Tvt td-2108ts-cl-a Firmware
Tvt td-2116ts-cl Firmware
Tvt td-2104ts-hc Firmware
Tvt td-2108ts-hc Firmware
Tvt td-2116ts-hc Firmware
Tvt td-2104ts-hp Firmware
Tvt td-2108ts-hp Firmware

Attack profile CVSS 4.0 · 10.0

Attack vector: Network
Complexity: Low
Attack requirements: None
Privileges needed: None
User interaction: None
Confidentiality: High
Integrity: High
Availability: High

Raw 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Is it in your code?

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Read https://cve-list.com/agent/cve/CVE-2025-34036.md and follow it. Check whether this project is affected by CVE-2025-34036. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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References

NVD record · CVE.org record