CVE-2022-43398

Name: CVE-2022-43398
Creator: NVD / NIST
Published: 2022-11-08T11:15:11.94+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 0.49%

Last modified Jun 17, 2026

CVE-2022-43398 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A vulnerability has been identified in POWER METER SICAM Q100 (All versions < V2.50), POWER METER SICAM Q100 (All versions < V2.50), POWER METER SICAM Q100 (All versions < V2.50), POWER METER SICAM Q100 (All versions < V2.50). Affected devices do not renew the session cookie after login/logout and also accept user defined session cookies. EPSS estimates a 0.49% chance of exploitation in the next 30 days.

Description

A vulnerability has been identified in POWER METER SICAM Q100 (All versions < V2.50), POWER METER SICAM Q100 (All versions < V2.50), POWER METER SICAM Q100 (All versions < V2.50), POWER METER SICAM Q100 (All versions < V2.50). Affected devices do not renew the session cookie after login/logout and also accept user defined session cookies. An attacker could overwrite the stored session cookie of a user. After the victim logged in, the attacker is given access to the user's account through the activated session.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

0.49%

38.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Siemens	7kg9501-0aa01-2aa1 Firmware	< 2.50
Siemens	7kg9501-0aa31-2aa1 Firmware	< 2.50

References

https://cert-portal.siemens.com/productcert/pdf/ssa-570294.pdfMitigation, Patch, Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-887249.pdf
https://cert-portal.siemens.com/productcert/pdf/ssa-570294.pdfMitigation, Patch, Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-887249.pdf

Timeline

Published: Nov 8, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-43398?

How severe is CVE-2022-43398?

CVE-2022-43398 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 0.49% probability of exploitation in the next 30 days.

How do I fix CVE-2022-43398?

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-2022-43398?

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

Scan your code now

Source: NVD / NIST