Answer in brief
CVE-2026-90782 records a Unknown severity vulnerability in S2OPC through 1.7.3 NULL Pointer Dereference in alloc_notification_message_items(). The current sources do not mark it as known exploited. The current feed maps Systerel/S2OPC (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Systerel/S2OPC (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Systerel/S2OPCgeneric | 0 | Not reported |
Published upstream
Sep 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 13, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 13, 2026
S2OPC through 1.7.3 contains a null pointer dereference in msg_subscription_publish_bs__alloc_notification_message_items() where a failed allocation for DataChangeNotification is overwritten by a successful allocation for EventNotificationList. Attackers can trigger heap allocation failures on sessions with both data-change and event notifications to cause the server process to terminate.
Quoted source text, attributed separately from HOL analysis.