CVE-2026-90782

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.57% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 46.9% of scored records. A rank, not a probability.

NVD base score

6.0 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-09-23.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-09-13 12:22Z1 MO AGO

Last updated

2026-09-14 17:26Z1 MO AGO

Reserved

2026-09-13

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

Medium (CVSS 6.0)

CNA CVSS vector

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

Weaknesses

• CWE-476NULL Pointer DereferenceBase

Data version

5.2

Document digest

4be3104f281c74e7ea6d6152b876a7adda8dc05d436a79a73df9443350713376

• gitlab.comGitLab issue 1815https://gitlab.com/systerel/S2OPC/-/issues/1815issue-tracking
• gitlab.comPatch Commithttps://gitlab.com/systerel/S2OPC/-/commit/8848f051eed069b107ae7cb16a346d6f6386a8f5patch
• gitlab.comStatus clobbering and NULL dereference at S2OPC_Toolkit_1.7.3https://gitlab.com/systerel/S2OPC/-/blob/S2OPC_Toolkit_1.7.3/src/ClientServer/services/b2c/msg_subscription_publish_bs.c#L106-L147technical-description
• gitlab.comhttps://gitlab.com/systerel/S2OPCproduct
• gitlab.comMerge request !1862https://gitlab.com/systerel/S2OPC/-/merge_requests/1862patch
• www.vulncheck.comVulnCheck Advisory: S2OPC through 1.7.3 NULL Pointer Dereference in alloc_notification_message_items()https://www.vulncheck.com/advisories/s2opc-through-1.7.3-null-pointer-dereference-in-alloc-notification-message-itemsthird-party-advisory