CVE-2026-18790: A weakness has been identified in Systerel S2OPC up to 1.7.3

Routine

LOW 3.3

CVE-2026-18790 is a low-severity flaw (CVSS 3.3) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	3.3 (Low)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 95%)
CISA exploited list	No
Weakness	CWE-119, CWE-125
Published	2026-08-04
Last modified	2026-10-23

Publisher (CNA): VulDB

Timeline

2026-08-04 18:16 UTCPublished CVE record published
2026-10-23 21:10 UTCUpdated Record last modified

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References

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