vulntracker.iovulntracker.io
© 2026 vulntracker.io

CVE-2021-33728

HIGH
7.2
CVSS Score
Published: October 12, 2021 at 09:49 AM UTC
Updated: June 17, 2026 at 03:55 AM UTC
1 product affected across 1 vendorSINEC NMS

Using SINEC NMS by Siemens?

Get instant alerts when new vulnerabilities affect SINEC NMS - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Start FreeSign In
Severity
HIGH7.2
Exploit prediction
EPSS 2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

SINEC NMS· Siemens
95%
v < 1.01.01.0 sp11.0 sp2All versions < V1.0 SP2 Update 1
Affected range stops below 1.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_MISCPatchVendor Advisory
Source: [email protected]
https://cert-portal.siemens.com/productcert/pdf/ssa-163251.pdf

CVSS

7.2HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-502

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Create accountSign in
Free plan, no card