CVE-2026-18790

Systerel S2OPC DeleteMonitoredItemsRequest state_machine.c out-of-bounds

LOW
3.3
CVSS Score
Published: August 4, 2026 at 05:30 PM UTC
Updated: October 24, 2026 at 04:10 PM UTC
1 product affected across 1 vendorS2OPC

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Severity
LOW3.3
Exploit prediction
EPSS 0.2%
SSVC
PoC

Description

A weakness has been identified in Systerel S2OPC up to 1.7.3. This affects the function LockedStaMac_ProcessMsg_DeleteMonitoredItemsResponse of the file src/ClientServer/frontend/client_wrapper/internal/state_machine.c of the component DeleteMonitoredItemsRequest Handler. This manipulation causes out-of-bounds read. The attack can only be executed locally. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (6)

VDB EntryTechnical Description
Source: cverecord
https://vuldb.com/vuln/385790
SignaturePermissions Required
Source: cverecord
https://vuldb.com/vuln/385790/cti
Third Party Advisory
Source: cverecord
https://vuldb.com/cve/CVE-2026-18790
Third Party Advisory
Source: cverecord
https://vuldb.com/submit/857761

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

3.3LOWVulDB
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-125CWE-119

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