CVE-2026-82619

MEDIUM 4.3

Systerel S2OPC subscription_mgr.c use after free

CVSS Score

4.3

EPSS Score

0.0%

EPSS Percentile

0th

A vulnerability was identified in Systerel S2OPC up to 1.7.3. The impacted element is the function monitored_item_event_filter_treatment_bs__init_event_filter_ctx_and_result of the file src/ClientServer/services/bgenc/subscription_mgr.c. Such manipulation of the argument EventFilter leads to use after free. The attack may be performed from remote. The exploit is publicly available and might be used. The name of the patch is a4cee16a851b971be447a6ed531173702c722b99. It is best practice to apply a patch to resolve this issue.

CWE	CWE-416 CWE-119
Vendor	systerel
Product	s2opc
Published	Aug 31, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

Systerel / S2OPC

1.7.0 1.7.1 1.7.2 1.7.3

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/397119 vuldb.com: https://vuldb.com/vuln/397119/cti vuldb.com: https://vuldb.com/cve/CVE-2026-82619 vuldb.com: https://vuldb.com/submit/893148 gitlab.com: https://gitlab.com/systerel/S2OPC/-/work_items/1797 gitlab.com: https://gitlab.com/systerel/S2OPC/-/merge_requests/1839 gitlab.com: https://gitlab.com/systerel/S2OPC/-/commit/a4cee16a851b971be447a6ed531173702c722b99

Credits

🔍 VULL (VulDB User)