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5.3
MEDIUM CVSS 4.0
CVE-2026-113618
Improper Server Certificate Validation in ZSIRep Client Library
Overview
Description

The ZSIRep client library (ZSIREP.CLIENT.DLL) is vulnerable to improper server certificate validation. It registers a process-wide .NET callback that accepts any certificate for HTTPS connections without verification. This allows a man-in-the-middle attacker to impersonate the ZSIRep server and intercept or modify authentication data and documents. The callback persists after the client is closed, weakening other HTTPS connections in the same application. The issue was fixed in version 2.12.3.1. The library is used in KS-SOMED (fixed in 2026.03.0.01), KS-PPS (fixed in 2026.03.1.0), KS-MEDIS (fixed in 2026.03.0.0), KS-SOLAB (fixed in 2026.3.1.0), and KS-ASW (fixed in 2026.3.0.1).

Details
INFO

Published Date :

Nov. 6, 2026, 2:13 p.m.

Last Modified :

Nov. 6, 2026, 2:13 p.m.

Remotely Exploit :

No

Source :

CERT-PL
Impact
Affected Products

The following products are affected by CVE-2026-113618 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

No affected product recoded yet

: Total Affected Vendor : 0 | Products : 0
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 4.0 MEDIUM 4bb8329e-dd38-46c1-aafb-9bf32bcb93c6
Solution
Update the ZSIREP client library and affected applications to patched versions to ensure proper server certificate validation.
  • Update ZSIREP client library to version 2.12.3.1.
  • Update KS-SOMED to version 2026.03.0.01.
  • Update KS-PPS to version 2026.03.1.0.
  • Update KS-MEDIS to version 2026.03.0.0.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-113618 vulnerability anywhere in the article.

  • cert.pl
Vulnerability in KAMSOFT ZSIRep CLIENT library

Vulnerability in KAMSOFT ZSIRep CLIENT library CVE ID CVE-2026-113618 Publication date 06 November 2026 Vendor KAMSOFT Product ZSIRep CLIENT library Vulnerable versions All before 2.12.3.1 Vulnerabili ... Read more

Published Date: Nov 06, 2026 (4 hours, 24 minutes ago)

Results are limited to the first 20 news articles due to potential performance issues.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 5.3
Attack Vector
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