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CVE-2026-90782

MediumCVSS 6 / 10
Published Sep 13, 2026·Last modified Sep 14, 2026
Affected Components(9)
systerel/S2OPC
S2OPC_PubSub_0.2.0
systerel/S2OPC
S2OPC_PubSub_0.1.0
systerel/S2OPC
S2OPC_LibSub_0.1.3
1 / 3
Description

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.

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Risk Scores
Base Score
6.0

The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker needs basic access or low-level privileges. No user interaction is needed for the attacker to exploit this vulnerability.

Threat Intelligence
5.4

Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.

EPSS
0.57%

The exploit probability is very low. The vulnerability is unlikely to be exploited in the next 30 days.

Exploit
Proof of Concept

A proof of concept is available for this vulnerability (1 exploit found).

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