What is CVE-2021-33728?

CVE-2021-33728 is a high-severity vulnerability in Siemens Sinec Nms, classified under Deserialization of Untrusted Data. CVSS score: 7.2/10. Published 2021-10-12.

How severe is CVE-2021-33728?

High severity. CVSS v3 base score is 7.2 out of 10.

Deserialization in Siemens Sinec Nms

CVE-2021-33728

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.

Vulnerability class: Insecure Deserialization

EPSS: 0.015 (71.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Siemens Sinec Nms — versions All versions < V1.0 SP2 Update 1
Siemens Sinec_nms — versions 1.0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

References

productcert@siemens.com (Patch, x_refsource_MISC, Vendor Advisory)

Frequently asked questions

What is CVE-2021-33728?: CVE-2021-33728 is a high-severity vulnerability in Siemens Sinec Nms, classified under Deserialization of Untrusted Data. CVSS score: 7.2/10. Published 2021-10-12.
How severe is CVE-2021-33728?: High severity. CVSS v3 base score is 7.2 out of 10.