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.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00041.

Exploitation none

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
KAMSOFT KS-SOMED unknown
Version Status Constraints
0 affected ≤ 30.00.00.056
KAMSOFT KS-SOMED unaffected
Version Status Constraints
0 affected ≤ 29.00.02.026

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Project Subscriptions

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Advisories

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://cert.pl/posts/2026/06/CVE-2026-1958 cve-icon cve-icon
https://kamsoft.pl/ks-somed/ cve-icon cve-icon
History

Mon, 01 Jun 2026 16:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 01 Jun 2026 15:00:00 +0000

Type Values Removed Values Added
Description 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.
Title Hard-coded credentials in KS-SOMED
Weaknesses CWE-798
References
Metrics cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: CERT-PL

Published:

Updated: 2026-06-01T15:29:24.327Z

Reserved: 2026-04-25T11:31:56.229Z

Link: CVE-2026-42251

cve-icon Vulnrichment

Updated: 2026-06-01T15:29:20.512Z

cve-icon NVD

Status : Deferred

Published: 2026-06-01T15:16:35.060

Modified: 2026-06-01T16:37:15.140

Link: CVE-2026-42251

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-01T16:30:06Z

Weaknesses