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CVE-2026-81861
CWE-522: Insufficiently Protected Credentials vulnerability that could result in exposure of authentication information and unauthorized access to RTU functionality.
This record: live connection— last retrieved: 7 November 2026 at 15:53.
Vendor
Published
11 September 2026
Last modified
18 September 2026
Taken directly from NVD, CISA or the vendor — sometimes in English, unchanged from the source.
CWE-522: Insufficiently Protected Credentials vulnerability that could result in exposure of authentication information and unauthorized access to RTU functionality.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/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
Attack vector
NETWORK
Privileges required
NONE
User interaction
REQUIRED
Confidentiality
High
Integrity
None
Availability
None
Probability of exploitation within 30 days
0.5%
Percentile
46e
Source: FIRST.org, updated on 6 November 2026.
Implement the Role-Based Access Control (RBAC) feature and follow the SCADAPack documentation sections Security Guidelines for Administrators and Working with Role-Based Access Control. RBAC is the recommended access control mechanism for SCADAPack 47x devices and should be used in place of the Secure Lock feature. The Secure Lock feature is legacy functionality retained for backward compatibility with existing deployments and should only be used where required to support legacy system requirements. Consult the SCADAPack Cybersecurity Guide, including the SCADAPack Hardening and Secured Communication sections. In addition, apply the following standard practices to reduce the risk of exploitation: • Configure network segmentation to restrict access between trusted and untrusted networks. • Enable and implement the RTU firewall service to restrict unauthorized access to device services and reduce the attack surface. Documentation available in [RemoteConnect and SCADAPack x70 Utilities | Schneider Electric](https://www.se.com/ww/en/download/document/RemoteConnect/)
Our own interpretation and context for the source data above.
IACS Radar assessment
Our own interpretation and context for this vulnerability — not an official source.
IACS Radar priority score
Based on CVSS 5.9, EPSS 0.5%, industrial relevance 75/100.
Combines CVSS, EPSS, KEV status, industrial relevance and exposure relevance — a complement to, not a replacement for, the individual scores below and above.
Conditions for exploitation
Operational impact & energy relevance
Limited impact on availability; the risk lies mainly with confidentiality or integrity of process data.
Assessed as relevant to the energy sector based on: Vermeld in een officiële CISA ICS Advisory, wat directe relevantie voor industriële besturingssystemen bevestigt. Productbeschrijving komt overeen met de categorie "RTU", een typisch OT/ICS-componenttype. Vendor "Schneider Electric" is a known supplier of equipment for the energy sector.
Recommended defensive measures
Industrial relevance score
Automatically classified as industrially relevant based on CISA/NVD signals (see reasons).
Classified by IACS Radar-analysepijplijn (geautomatiseerd) on 7 November 2026.
IEC 62443 mapping
Automatic IACS Radar assessment based on the reported CWE weakness classification; not an official certification statement.