CVE-2017-12734

Name: CVE-2017-12734
Creator: NVD / NIST
Published: 2017-08-30T19:29:00.273+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.45%

Last modified Jun 17, 2026

CVE-2017-12734 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V1.81.2). EPSS estimates a 1.45% chance of exploitation in the next 30 days.

Description

A vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V1.81.2). An attacker with network access to the integrated web server on port 80/tcp could obtain the session ID of an active user session. A user must be logged in to the web interface. Siemens recommends to use the integrated webserver on port 80/tcp only in trusted networks.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.45%

70.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Siemens	Logo\!8 Bm Fs-05 Firmware	<= 1.81.1

References

http://www.securityfocus.com/bid/100560Third Party Advisory, VDB Entry
https://cert-portal.siemens.com/productcert/pdf/ssa-087240.pdfPatch, Vendor Advisory
http://www.securityfocus.com/bid/100560Third Party Advisory, VDB Entry
https://cert-portal.siemens.com/productcert/pdf/ssa-087240.pdfPatch, Vendor Advisory

Timeline

Published: Aug 30, 2017
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2017-12734?

How severe is CVE-2017-12734?

CVE-2017-12734 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.45% probability of exploitation in the next 30 days.

How do I fix CVE-2017-12734?

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-2017-12734?

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

Scan your code now

Source: NVD / NIST