CVE-2026-66360

The ISO Presentation layer contains a flaw in the handling of specific parameters during normal mode negotiation. A missing length check in the processing of the encoded presentation data allows an attacker controlled field with a zero length value to trigger a bounded heap over read. This condition occurs before MMS session establishment, a crafted TCP/102 connection attempt can trigger the issue. The resulting over read causes the process to terminate, leading to a denial of service condition.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-211-10.json
https://www.cisa.gov/news-events/ics-advisories/icsa-26-211-10

Configurations

No configuration.

History

23 Oct 2026, 23:10

Type	Values Removed	Values Added
Summary		(es) La capa de presentación ISO contiene una falla en el manejo de parámetros específicos durante la negociación del modo normal. Una verificación de longitud faltante en el procesamiento de los datos de presentación codificados permite que un campo controlado por el atacante con un valor de longitud cero desencadene una lectura excesiva de un montón acotado. Esta condición ocurre antes del establecimiento de la sesión MMS; un intento de conexión TCP/102 manipulado puede desencadenar el problema. La lectura excesiva resultante provoca la terminación del proceso, lo que lleva a una condición de denegación de servicio.

Information

Published : 2026-07-30 23:16

Updated : 2026-10-23 23:10

NVD link : CVE-2026-66360

Mitre link : CVE-2026-66360

CVE.ORG link : CVE-2026-66360

JSON object : View

Products Affected

No product.

CWE

CWE-125

Out-of-bounds Read

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