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Fencer Intel
medium 4.3

CVE-2015-5537 json

The SSL layer of the HTTPS service in Siemens RuggedCom ROS before 4.2.0 and ROX II does not properly implement CBC padding, which makes it…

published 2015-08-03 11 y ago modified 2026-06-17 4 mo ago also EUVD-2015-5491

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 66%
public exploits
0
none known

Summary

The SSL layer of the HTTPS service in Siemens RuggedCom ROS before 4.2.0 and ROX II does not properly implement CBC padding, which makes it easier for man-in-the-middle attackers to obtain cleartext data via a padding-oracle attack, a different vulnerability than CVE-2014-3566.

Patch / fix

  • siemens ruggedcom_rugged_operating_system 4.2.0

Vendor advisories

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

cisa ICSA-15-202-03B updated cvss 4.3

Siemens RUGGEDCOM ROS and ROX-based Devices TLS POODLE Vulnerability (Update B)

  • Siemens RUGGEDCOM devices with ROS <v4.2.0 Siemens RUGGEDCOM devices with ROX II <v2.9.0.
    affected: mitigation “Siemens has produced a firmware update v4.2.0 for ROS-based devices and firmware update v2.9.0 for ROX II-based devices, which fixes the vulnerability”

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

1.14% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-312 Cleartext Storage of Sensitive Information

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.