Novastar CX40 up to 2.44.0 NetFilter Utility /usr/nova/bin/netconfig getopt cmd/netmask/pipeout/nettask stack-based overflow

Summaryinfo

A vulnerability was found in Novastar CX40 up to 2.44.0. It has been rated as critical. This affects the function getopt of the file /usr/nova/bin/netconfig of the component NetFilter Utility. The manipulation of the argument cmd/netmask/pipeout/nettask leads to stack-based overflow. This vulnerability is uniquely identified as CVE-2025-3007. Moreover, an exploit is present. The vendor was contacted early about this disclosure but did not respond in any way.

Detailsinfo

A vulnerability was found in Novastar CX40 up to 2.44.0. It has been rated as critical. This issue affects the function getopt of the file /usr/nova/bin/netconfig of the component NetFilter Utility. The manipulation of the argument cmd/netmask/pipeout/nettask with an unknown input leads to a stack-based overflow vulnerability. Using CWE to declare the problem leads to CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). Impacted is confidentiality, integrity, and availability.

The identification of this vulnerability is CVE-2025-3007. The exploitation is known to be easy. Technical details as well as a public exploit are known.

It is declared as proof-of-concept. The vendor was contacted early about this disclosure but did not respond in any way.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

• Novastar

Name

• CX40

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5
• 2.6
• 2.7
• 2.8
• 2.9
• 2.10
• 2.11
• 2.12
• 2.13
• 2.14
• 2.15
• 2.16
• 2.17
• 2.18
• 2.19
• 2.20
• 2.21
• 2.22
• 2.23
• 2.24
• 2.25
• 2.26
• 2.27
• 2.28
• 2.29
• 2.30
• 2.31
• 2.32
• 2.33
• 2.34
• 2.35
• 2.36
• 2.37
• 2.38
• 2.39
• 2.40
• 2.41
• 2.42
• 2.43
• 2.44.0

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

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Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Submitinfo

Accepted

• Submit #524867: Novastar CX40 / NetFilter Utility <=2.44.0 firmwares Memory Corruption (by ninpwn)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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