CVE-2026-100730 (GCVE-0-2026-100730)

Vulnerability from cvelistv5 – Published: 2026-10-09 13:44 – Updated: 2026-10-09 13:44
VLAI
Title
Grid Protection Alliance openPDC and openHistorian Deserialization of Untrusted Data
Summary
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.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3 (Critical)
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
CWE
Assigner
icscert CNA under the icscert root
CNA scorecard C 75/100 over 352 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Grid Protection Alliance openPDC Affected: 0 , < 2.9.477 (custom)
Affected: 0 , < 2.9.482 (custom)
Unaffected: 2.9.482
guessed Create a notification for this product.
Grid Protection Alliance openPDC (Docker image) Affected: 0 , < 2.9.477 (custom)
Affected: 0 , < 2.9.482 (custom)
guessed Create a notification for this product.
Grid Protection Alliance openHistorian Affected: 0 , < 2.8.580 (custom)
Affected: 0 , < 2.8.585 (custom)
Unaffected: 2.8.585
guessed Create a notification for this product.
Credits
Shubham Raj (Cipher) of Causal Security reported this vulnerability to CISA.
Show details on NVD website
To clipboard 

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}



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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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