CVE-2026-100730Grid Protection Alliance openPDC and openHistorian Deserialization of Untrusted Data
Updated under an hour ago ()
Does this affect you?
It affects Grid Protection Alliance openPDC and 2 other products. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.63%, higher than 49% of scored CVEs.
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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.
- CVSS
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-502
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.63% (percentile 49)
- Assigned by
- icscert
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 11, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Grid Protection Alliance openPDC grid_protection_alliance:openpdc (from the name) | before 2.9.477; before 2.9.482; 2.9.482 not affected | CNA record |
Grid Protection Alliance openPDC (Docker image) grid_protection_alliance:openpdc_docker_image (from the name) | before 2.9.477; before 2.9.482 | CNA record |
Grid Protection Alliance openHistorian grid_protection_alliance:openhistorian (from the name) | before 2.8.580; before 2.8.585; 2.8.585 not affected | CNA record |
References
- https://www.cisa.gov/news-events/ics-advisories/icsa-26-281-02
- https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-281-02.json
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.