Is CVE-2015-5537 in the CISA KEV catalog?

No. CVE-2015-5537 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-5537?

CVE-2015-5537 has a CVSS v2 base score of 4.3 (MEDIUM).

What is the EPSS score for CVE-2015-5537?

CVE-2015-5537 has an EPSS score of 1.14% (63th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-5537?

Upgrade ruggedcom rugged operating system to 4.2.0 or later.

CVE & CISA-KEV Catalog

CVE-2015-5537

MEDIUM

4.3

CVSS v2

NVD

Description

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.

CWE-312

How to fix

Remediation Available

ruggedcom rugged operating systemNVD

Affected:< 4.2.0Fixed in:4.2.0CVE-2015-5537derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

1.14%probability of exploitation in 30 days

63rdpercentile

Moderate risk: more likely to be exploited than 63% of all known CVEs.

References

Patch1

siemens.com

Third-Party Advisory2

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.