CVE-2026-90782: Systerel S2OPC

S2OPC through 1.7.3 NULL Pointer Dereference in alloc_notification_message_items()

CVSS 6.0 MediumEPSS 0.0057 · 47th percentile

Published by the CVE Program (CNA: VulnCheck) at 13 Sept 2026, 12:22 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Systerel	S2OPC	affected 1.7.3 and earlier custom unaffected 8848f051eed069b107ae7cb16a346d6f6386a8f5 git Other versions: unaffected

Identifiers

CVE-2026-90782

CNA

VulnCheck

Weakness (CWE)

CWE-476

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
5.3	Medium	3.1	CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H	CNA (VulnCheck)
6.0	Medium	4.0	CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	CNA (VulnCheck)Used for this record

CISA KEV Not listed.
EPSS 0.0057, the 47th percentile, on 6 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 13 Sept 2026. New records show when each source confirmed them.

Sources

References from the CNA

gitlab.com/systerel/S2OPC/-/issues/1815 issue-tracking
gitlab.com/systerel/S2OPC/-/commit/8848f051eed069b107ae7cb16a346d6f6386a8f5 patch
gitlab.com/systerel/S2OPC/-/blob/S2OPC_Toolkit_1.7.3/src/ClientServer/services/b2c/msg_subscription_publish_bs.c#L106-L147 technical-description
gitlab.com/systerel/S2OPC product
gitlab.com/systerel/S2OPC/-/merge_requests/1862 patch
www.vulncheck.com/advisories/s2opc-through-1.7.3-null-pointer-dereference-in-alloc-notification-message-items third-party-advisory

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.