CVE-2023-48427

Name: CVE-2023-48427
Creator: NVD / NIST
Published: 2023-12-12T12:15:14.677+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 0.38%

Last modified Jun 17, 2026

CVE-2023-48427 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. A vulnerability has been identified in SINEC INS (All versions < V1.0 SP2 Update 2). Affected products do not properly validate the certificate of the configured UMC server. EPSS estimates a 0.38% chance of exploitation in the next 30 days.

Description

A vulnerability has been identified in SINEC INS (All versions < V1.0 SP2 Update 2). Affected products do not properly validate the certificate of the configured UMC server. This could allow an attacker to intercept credentials that are sent to the UMC server as well as to manipulate responses, potentially allowing an attacker to escalate privileges.

Metrics

CVSS 3.1

9.8/10

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

EPSS Probability

0.38%

30.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Siemens	Sinec Ins	< 1.0
Siemens	Sinec Ins	1.0

References

https://cert-portal.siemens.com/productcert/pdf/ssa-077170.pdfPatch, Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-077170.pdfPatch, Vendor Advisory

Timeline

Published: Dec 12, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-48427?

How severe is CVE-2023-48427?

CVE-2023-48427 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 0.38% probability of exploitation in the next 30 days.

How do I fix CVE-2023-48427?

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-2023-48427?

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

Scan your code now

Source: NVD / NIST