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CVE-2015-5537

14
FAUCET Score

CVE-2015-5537 describes a padding-oracle vulnerability in the SSL layer of Siemens RuggedCom ROS before version 4.2.0 and ROX II firmware, allowing man-in-the-middle attackers to decrypt cleartext data. This vulnerability has a CVSS score of 4.3 (Medium), indicating a network-based attack with medium complexity and potential for partial confidentiality impact. While no public exploit code or active exploitation is reported, the vulnerability has garnered some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
Range not provided by sourceCPE matchmatch criteria
cpe:2.3:o:siemens:ruggedcom_rox_ii_firmware:-:*:*:*:*:*:*:*
< 4.2.0CPE matchmatch criteria
cpe:2.3:o:siemens:ruggedcom_rugged_operating_system:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.3MEDIUM

AV:N/AC:M/Au:N/C:P/I:N/A:N

Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.14%
Probability of exploitation in next 30 days
EPSS Percentile
63.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0114 is in the 26th percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

ics-cert.us-cert.gov / advisories/ICSA-15-202-03A
Broken LinkThird Party AdvisoryUS Government Resource
securitytracker.com / id/1033022
Broken LinkThird Party AdvisoryVDB Entry
siemens.com / innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-396873.pdf
Broken LinkPatchVendor Advisory