Heimdall Data Database Proxy 25.03.01.21 generateFileContent crlf injection

Summaryinfo

A vulnerability identified as very critical has been detected in Heimdall Data Database Proxy 25.03.01.21. Affected by this issue is the function generateFileContent. This manipulation causes crlf injection. This vulnerability appears as CVE-2026-12357. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability was found in Heimdall Data Database Proxy 25.03.01.21. It has been declared as very critical. Affected by this vulnerability is the function generateFileContent. The manipulation with an unknown input leads to a crlf injection vulnerability. The CWE definition for the vulnerability is CWE-93. The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Heimdall Data Database Proxy generateFileContent CRLF Injection Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Heimdall Data Database Proxy. Authentication is required to exploit this vulnerability. The specific flaw exists within the generateFileContent function. The issue results from the lack of proper neutralization of CRLF sequences. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-29251.

The advisory is shared at zerodayinitiative.com. This vulnerability is known as CVE-2026-12357 since 06/16/2026. The exploitation appears to be easy. The attack can be launched remotely. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/29/2026).

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

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Firewall Software

Vendor

• Heimdall Data

Name

• Database Proxy

Version

• 25.03.01.21

CPE 2.3info

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CPE 2.2info

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Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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