CVE-2021-33728

HIGH

SINEC NMS < V1.0 SP2 Update 1 - Code Injection

Title source: llm

Description

A vulnerability has been identified in SINEC NMS (All versions < V1.0 SP2 Update 1). The affected system allows to upload JSON objects that are deserialized to JAVA objects. Due to insecure deserialization of user-supplied content by the affected software, a privileged attacker could exploit this vulnerability by sending a crafted serialized Java object. An exploit could allow the attacker to execute arbitrary code on the device with root privileges.

References (1)

[Patch, Vendor Advisory] https://cert-portal.siemens.com/productcert/pdf/ssa-163251.pdf

Scores

CVSS v3 7.2

EPSS 0.0199

EPSS Percentile 83.4%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Classification

CWE

CWE-502

Status published

Affected Products (4)

siemens/sinec_nms < 1.0

siemens/sinec_nms

Timeline

Published Oct 12, 2021

Tracked Since Feb 18, 2026