A service console interface on openPDC and openHistorian deserializes a client-supplied data structure. On systems using Windows Authentication, an attacker must already be authenticated to reach this function; on systems without Windows Authentication, this is reachable by an unauthenticated network attacker. This allows an attacker to trigger deserialization of an arbitrary object graph, which could allow remote code execution under the privileges of the affected service account.
History

Mon, 12 Oct 2026 08:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Sun, 11 Oct 2026 12:45:00 +0000

Type Values Removed Values Added
First Time appeared Grid Protection Alliance
Grid Protection Alliance openhistorian
Grid Protection Alliance openpdc
Vendors & Products Grid Protection Alliance
Grid Protection Alliance openhistorian
Grid Protection Alliance openpdc

Fri, 09 Oct 2026 14:00:00 +0000

Type Values Removed Values Added
Description A service console interface on openPDC and openHistorian deserializes a client-supplied data structure. On systems using Windows Authentication, an attacker must already be authenticated to reach this function; on systems without Windows Authentication, this is reachable by an unauthenticated network attacker. This allows an attacker to trigger deserialization of an arbitrary object graph, which could allow remote code execution under the privileges of the affected service account.
Title Grid Protection Alliance openPDC and openHistorian Deserialization of Untrusted Data
Weaknesses CWE-502
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: icscert

Published: 2026-10-09T13:44:39.190Z

Updated: 2026-10-11T17:05:29.323Z

Reserved: 2026-10-05T16:54:01.616Z

Link: CVE-2026-100730

cve-icon Vulnrichment

Updated: 2026-10-11T16:55:42.995Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-10-09T14:17:09.607

Modified: 2026-10-11T17:16:56.753

Link: CVE-2026-100730

cve-icon Redhat

No data.