Vulnerability record · CVE-2024-3721 · published 13 April 2024

CVE-2024-3721: OS command injection vulnerability

A vulnerability was found in TBK DVR-4104 and DVR-4216 up to 20240412 and classified as critical. This issue affects some unknown processing of the file /device.rsp?opt=sys&cmd=___S_O_S_T_R_E_A_MAX___. The manipulation of the argument mdb/mdc leads to os command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-260573 was assigned to this vulnerability.

6.3 CVSS 3.1 Medium EPSS 86% · top 0.3% CWE-78 · OS command injection Deferred

6.3CVSS 3.1 base score, v2 6.5

86%EPSS exploitation probability, 30 days

NoNot in CISA KEV

0Affected product versions listed by NVD

8References

17 Jun 2026Last modified by NVD

Description

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

References

Link	Tags
https://github.com/netsecfish/tbk_dvr_command_injection
https://vuldb.com/?ctiid.260573
https://vuldb.com/?id.260573
https://vuldb.com/?submit.314969
https://github.com/netsecfish/tbk_dvr_command_injection
https://vuldb.com/?ctiid.260573
https://vuldb.com/?id.260573
https://vuldb.com/?submit.314969

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Source: NIST National Vulnerability Database (record CVE-2024-3721), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.