CVE-2026-90782

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-90782
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90782.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-90782
Published
2026-09-13T12:22:01Z
Modified
2026-09-16T08:09:46Z
Severity
  • 6.0 (Medium) CVSS_V4 - 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 CVSS Calculator
Summary
S2OPC through 1.7.3 NULL Pointer Dereference in alloc_notification_message_items()
Details

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.

Database specific 
{
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
        "CWE-476"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90782.json"
}
References

Affected packages

Git / gitlab.com/systerel/S2OPC

Affected ranges

Type
GIT
Repo
https://gitlab.com/systerel/S2OPC
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
8848f051eed069b107ae7cb16a346d6f6386a8f5
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "1.7.3"
        }
    ],
    "source": [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

S2OPC_LibSub_0.*
S2OPC_LibSub_0.0.2b
S2OPC_LibSub_0.0.2c
S2OPC_LibSub_0.0.2d
S2OPC_LibSub_0.0.2e
S2OPC_LibSub_0.1.2
S2OPC_LibSub_0.1.3
S2OPC_PubSub_0.*
S2OPC_PubSub_0.1.0
S2OPC_PubSub_0.2.0
Other
Version_Schneider_ClockWork

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90782.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "267434289667783062172027766477893675357",
                "162307337802656131982794424823855339668",
                "288814776294781444704073730711806677128",
                "192801580654839292751431697967038442681",
                "47819597508775867248455719652207020172",
                "209053912494654477757136134681134881991",
                "65529608612764284094908761609133252869",
                "146325353456770940215568559260577929693"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2026-90782-cbc8d23d",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://gitlab.com/systerel/S2OPC@8848f051eed069b107ae7cb16a346d6f6386a8f5",
        "target": {
            "file": "src/ClientServer/services/b2c/msg_subscription_publish_bs.c"
        }
    }
]
vanir_signatures_modified 
"2026-09-16T08:09:46Z"