CVE-2021-44165

Name: CVE-2021-44165
Creator: NVD / NIST
Published: 2021-12-14T12:15:10.923+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.2/10EPSS 2.59%

Last modified Jun 17, 2026

CVE-2021-44165 is a high-severity vulnerability rated 7.2/10 on the CVSS scale. A vulnerability has been identified in POWER METER SICAM Q100 (All versions < V2.41), POWER METER SICAM Q100 (All versions < V2.41), POWER METER SICAM Q100 (All versions < V2.41), POWER METER SICAM Q100 (All versions < V2.41). The affected firmware contains a buffer overflow vulnerability in the web application that could allow a remote attacker with engineer or admin priviliges to potentially perform remote code execution.. EPSS estimates a 2.59% chance of exploitation in the next 30 days.

Description

A vulnerability has been identified in POWER METER SICAM Q100 (All versions < V2.41), POWER METER SICAM Q100 (All versions < V2.41), POWER METER SICAM Q100 (All versions < V2.41), POWER METER SICAM Q100 (All versions < V2.41). The affected firmware contains a buffer overflow vulnerability in the web application that could allow a remote attacker with engineer or admin priviliges to potentially perform remote code execution.

Metrics

CVSS 3.1

7.2/10

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

EPSS Probability

2.59%

83.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-121

Affected Software

Vendor	Product	Versions
Siemens	7kg9501-0aa01-2aa1 Firmware	< 2.41
Siemens	7kg9501-0aa31-0aa1 Firmware	< 2.41
Siemens	7kg9501-0aa31-2aa1 Firmware	< 2.41
Siemens	7kg9501-0aa01-0aa1 Firmware	< 2.41

References

https://cert-portal.siemens.com/productcert/pdf/ssa-496292.pdfVendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-496292.pdfVendor Advisory

Timeline

Published: Dec 14, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-44165?

How severe is CVE-2021-44165?

CVE-2021-44165 has a CVSS score of 7.2/10 (HIGH severity). The EPSS model estimates a 2.59% probability of exploitation in the next 30 days.

How do I fix CVE-2021-44165?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-44165?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST