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Fencer Intel
medium 5.9

CVE-2017-12740 json

Siemens LOGO! Soft Comfort (All versions before V8.2) lacks integrity verification of software packages downloaded via an unprotected commu…

published 2017-12-26 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-4279

cvss
5.9
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 47%
public exploits
0
none known

Summary

Siemens LOGO! Soft Comfort (All versions before V8.2) lacks integrity verification of software packages downloaded via an unprotected communication channel. This could allow a remote attacker to manipulate the software package while performing a Man-in-the-Middle (MitM) attack.

Patch / fix

  • siemens logo!_soft_comfort 8.2

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-17-353-04 updated cvss 5.9

Siemens LOGO! Soft Comfort

  • Siemens LOGO! Soft Comfort < 8.2
    affected: vendor fix siemens.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

0.57% chance of exploitation in the next 30 days, higher than 47% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.0 5.9 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

  • n/a Siemens LOGO! Soft Comfort (All versions before V8.2)

Classification

Weakness
  • CWE-494 Download of Code Without Integrity Check
  • CWE-345 Insufficient Verification of Data Authenticity

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.