← Vulnerability feed

Vulnerability record · CVE-2017-12734 · published 30 August 2017

CVE-2017-12734: Siemens logo\!8 bm fs-05 firmware information exposure vulnerability

Siemens · Logo\!8 Bm Fs 05 Firmware

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.

7.5 CVSS 3.1 High EPSS 1.5% · top 26.9% CWE-895 · CWE-895CWE-200 · Information exposure
7.5CVSS 3.1 base score, v2 5.0
1.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

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.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/100560 Third Party AdvisoryVDB Entry
https://cert-portal.siemens.com/productcert/pdf/ssa-087240.pdf PatchVendor Advisory
http://www.securityfocus.com/bid/100560 Third Party AdvisoryVDB Entry
https://cert-portal.siemens.com/productcert/pdf/ssa-087240.pdf PatchVendor Advisory

Track CVE-2017-12734 inside VULONE

Watch it alongside the ransomware crews, C2 infrastructure and forum chatter that reference it, query it through the API and pull it into your SIEM over TAXII.

Start free Open in platform

Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2022-36361Siemens logo\! 8 bm firmware classic buffer overflow vulnerabilityA vulnerability has been identified in LOGO! 12/24RCE (6ED1052-1MD08-0BA1) (All versions), LOGO! 12/24RCEo (6ED1052-2MD08-0BA1) (All versions), LOGO!…EPSS 1.1%7.5CVE-2022-36362Siemens logo\! 8 bm firmware improper input validation vulnerabilityA vulnerability has been identified in LOGO! 12/24RCE (6ED1052-1MD08-0BA1) (All versions), LOGO! 12/24RCE (6ED1052-1MD08-0BA2) (All versions), LOGO! …EPSS 1.0%7.5CVE-2022-36360Siemens logo\! 8 bm firmware insufficient verification of data authenticity vulnerabilityA vulnerability has been identified in LOGO! 8 BM (incl. SIPLUS variants) (All versions < V8.3). Affected devices load firmware updates without check…EPSS 0.30%5.3CVE-2022-36363Siemens logo\! 8 bm firmware improper input validation vulnerabilityA vulnerability has been identified in LOGO! 12/24RCE (6ED1052-1MD08-0BA1) (All versions), LOGO! 12/24RCEo (6ED1052-2MD08-0BA1) (All versions), LOGO!…EPSS 0.51%

Source: NIST National Vulnerability Database (record CVE-2017-12734), CISA KEV, FIRST EPSS (scores of 2026-10-15). This page is refreshed as NVD updates the record.