Is there a public exploit for CVE-2026-113618?

No public exploit for CVE-2026-113618 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-113618?

CVE-2026-113618 scores CVSS 5.3 (v4.0), rated medium.

What does CVE-2026-113618 affect?

CVE-2026-113618 affects KAMSOFT ZSIRep Client Library.

5.3 Medium

The ZSIRep client library (ZSIREP.CLIENT.DLL) is vulnerable to improper server certificate validation.

CVE-2026-113618

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).

Assessment

CVSS: 5.3 (v4.0)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 6 November 2026
Last updated: 6 November 2026
Affected: KAMSOFT · ZSIRep Client Library
Assigner: CERT-PL

CVSS vectorCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

At the source

EUVD (ENISA)

References

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