Intelbras RX1500 up to 2.2.17 HTTP Header websReadEvent command integer overflow

Summaryinfo

A vulnerability identified as very critical has been detected in Intelbras RX1500 up to 2.2.17. The impacted element is the function websReadEvent of the component HTTP Header Handler. The manipulation of the argument command leads to integer overflow. This vulnerability is traded as CVE-2025-50404. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in Intelbras RX1500 up to 2.2.17 and classified as very critical. This issue affects the function websReadEvent of the component HTTP Header Handler. The manipulation of the argument command with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Intelbras RX1500 Router v2.2.17 and before is vulnerable to Integer Overflow. The websReadEvent function incorrectly uses the int type when processing the "command" field of the http header, causing the array to cross the boundary and overwrite other fields in the array.

The identification of this vulnerability is CVE-2025-50404 since 06/16/2025. The exploitation is known to be easy. The attack may be initiated remotely. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/03/2025).

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

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Productinfo

Vendor

• Intelbras

Name

• RX1500

Version

• 2.2.0
• 2.2.1
• 2.2.2
• 2.2.3
• 2.2.4
• 2.2.5
• 2.2.6
• 2.2.7
• 2.2.8
• 2.2.9
• 2.2.10
• 2.2.11
• 2.2.12
• 2.2.13
• 2.2.14
• 2.2.15
• 2.2.16
• 2.2.17

CPE 2.3info

• 🔒
• 🔒
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CPE 2.2info

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• 🔒

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Entryinfo

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