KAMSOFT KS-SOMED up to 29.00.02.026/30.00.00.056 Update KSPLUPDFTP.exe hard-coded credentials

Summaryinfo

A vulnerability was found in KAMSOFT KS-SOMED up to 29.00.02.026/30.00.00.056. It has been rated as critical. This affects an unknown function of the file KSPLUPDFTP.exe of the component Update Handler. The manipulation leads to hard-coded credentials. This vulnerability is documented as CVE-2026-42251. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in KAMSOFT KS-SOMED up to 29.00.02.026/30.00.00.056. This issue affects an unknown function of the file KSPLUPDFTP.exe of the component Update Handler. The manipulation with an unknown input leads to a hard-coded credentials vulnerability. Using CWE to declare the problem leads to CWE-798. The product contains hard-coded credentials, such as a password or cryptographic key, which it uses for its own inbound authentication, outbound communication to external components, or encryption of internal data. Impacted is confidentiality. The summary by CVE is:

Use of hard-coded credentials in KS-SOMED allowed an unauthorized attacker access to FTP server that hosted the application's update packages. The attacker with these credentials could upload a malicious update file, which then may have been distributed and installed on client machines as a legitimate update. This issue affects KS-SOMED with modules: KSPLUPDFTP.exe up to 30.00.00.056 and ANEKSKLIENT.EXE up to 29.00.02.026 Beside removing the hard-coded credentials from the code and changing the update process, access granted by previously exposed credentials was limited to read-only.

The weakness was released by Wojciech Giełda. The advisory is shared at cert.pl. The identification of this vulnerability is CVE-2026-42251 since 04/25/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. 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 06/01/2026). MITRE ATT&CK project uses the attack technique T1110.001 for this issue.

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

Vendor

• KAMSOFT

Name

• KS-SOMED

Version

• 29.00.02.026
• 30.00.00.056

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