--- title: "CVE-2024-3721: TBK DVR-4104/DVR-4216 os command injection | CubePath" description: "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…" language: en source: https://cubepath.com/security/cve/CVE-2024-3721 --- # CVE-2024-3721: TBK DVR-4104/DVR-4216 os command injection | CubePath ## Description 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. Official description from the CVE record, published by VulDB. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2024-3721) ## Key data ### CVSS 3.1 Medium 6.3 Score published by VulDB in the CVE record. CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L | Metric | Value | What it means | | ---------------------- | --------- | ----------------------------------------------------------------------------------- | | Attack vector | Network | The vulnerable component can be reached over a network, possibly from the Internet. | | Attack complexity | Low | No special conditions are needed. The attack can be repeated at will. | | Privileges required | Low | A basic user account is needed. | | User interaction | None | No action from any user is needed. | | Scope | Unchanged | The impact stays within the vulnerable component. | | Confidentiality impact | Low | Limited effect on the secrecy of data. | | Integrity impact | Low | Limited effect on the trustworthiness of data. | | Availability impact | Low | Limited effect on availability. | ### CVSS 3.0 Medium 6.3 Score published by VulDB in the CVE record. CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L | Metric | Value | What it means | | ---------------------- | --------- | ----------------------------------------------------------------------------------- | | Attack vector | Network | The vulnerable component can be reached over a network, possibly from the Internet. | | Attack complexity | Low | No special conditions are needed. The attack can be repeated at will. | | Privileges required | Low | A basic user account is needed. | | User interaction | None | No action from any user is needed. | | Scope | Unchanged | The impact stays within the vulnerable component. | | Confidentiality impact | Low | Limited effect on the secrecy of data. | | Integrity impact | Low | Limited effect on the trustworthiness of data. | | Availability impact | Low | Limited effect on availability. | ### CVSS 2.0 Medium 6.5 Score published by VulDB in the CVE record. AV:N/AC:L/Au:S/C:P/I:P/A:P | Metric | Value | What it means | | ---------------------- | ------- | -------------------------------------------------------------------------------------- | | Access vector | Network | The vulnerable component can be reached over a network, possibly from the Internet. | | Access complexity | Low | Specialized access conditions do not exist: the attack needs no special circumstances. | | Authentication | Single | The attacker needs to log in once. | | Confidentiality impact | Partial | Some data can be read. | | Integrity impact | Partial | Some data can be changed. | | Availability impact | Partial | Performance is reduced or some functions are interrupted. | CVSS is owned and managed by FIRST.Org, Inc. (FIRST) and is used by permission. Each CVSS score on this site is shown together with its vector string, as published in the CVE record by the source named next to it. Learn more at [first.org/cvss](https://www.first.org/cvss/) . ### EPSS Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days. Score 0.86489 (86.5% probability) Percentile 99.7% Scores of Nov 10, 2026 Model v2026.06.15 ### CISA assessment as of Jul 2, 2024 Stakeholder-Specific Vulnerability Categorization (SSVC) decision points added by CISA. Exploitation Public proof of concept recorded by CISA Automatable no Technical impact partial ### Weakness (CWE) CWE catalog version 5.0. CWE names: Copyright © 2006-2026, The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CWE license. - [CWE-78](https://cwe.mitre.org/data/definitions/78.html) Improper Neutralization of Special Elements used in an OS Command ## Affected products Products listed in the CVE record, as the CNA published them. - TBK DVR-4104 - affected: 20240412 - TBK DVR-4216 - affected: 20240412 ## References Links listed in the CVE record. They lead to other sites, which CubePath does not control. - [VDB-260573 | TBK DVR-4104/DVR-4216 os command injection](https://vuldb.com/?id.260573) (vuldb.com) vdb-entry technical-description - [VDB-260573 | CTI Indicators (IOB, IOC, TTP, IOA)](https://vuldb.com/?ctiid.260573) (vuldb.com) signature permissions-required - [Submit #314969 | TBK TBK DVR-4104, TBK DVR-4216 N/A Command Injection](https://vuldb.com/?submit.314969) (vuldb.com) third-party-advisory - [github.com/netsecfish/tbk\_dvr\_command\_injection](https://github.com/netsecfish/tbk%5Fdvr%5Fcommand%5Finjection) exploit ## Timeline 1. ID reserved Apr 12, 2024 2. Record published Apr 13, 2024 3. Record last updated Aug 1, 2024 ## Look up another CVE ## About CubePath CubePath is a cloud provider with data centers in Europe and the United States. It offers VPS, bare metal servers and DDoS protection. [Cloud VPS](https://cubepath.com/vps) [DDoS protection](https://cubepath.com/ddos-protection) Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 20:04 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)