CVE-2024-3721

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

86.49% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 99.7% of scored records. A rank, not a probability.

NVD base score

6.3 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2024-04-13 12:00Z2 YR AGO

Last updated

2024-08-01 20:20Z2 YR AGO

Reserved

2024-04-12

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 6.3)

CNA CVSS vector

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

Weaknesses

• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')Base

Data version

5.1

Document digest

d5fcba54b10929a3e8c6aae082dab0554caaa5aae3d92f679b4ee8b1e8ab4cb7

• vuldb.comVDB-260573 | TBK DVR-4104/DVR-4216 os command injectionhttps://vuldb.com/?id.260573vdb-entrytechnical-description
• vuldb.comVDB-260573 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/?ctiid.260573signaturepermissions-required
• vuldb.comSubmit #314969 | TBK TBK DVR-4104, TBK DVR-4216 N/A Command Injectionhttps://vuldb.com/?submit.314969third-party-advisory
• github.comhttps://github.com/netsecfish/tbk_dvr_command_injectionexploit