Vulnerability Monitor

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CVE-2015-8251

OpenStage 60 and OpenScape Desk Phone IP 55G SIP V3, OpenStage 15, 20E, 20 and 40 and OpenScape Desk Phone IP 35G SIP V3, OpenScape Desk Phone IP 35G Eco SIP V3, OpenStage 60 and OpenScape Desk Phone IP 55G HFA V3, OpenStage 15, 20E, 20, and 40 and OpenScape Desk Phone IP 35G HFA V3, and OpenScape Desk Phone IP 35G Eco HFA V3 use non-unique X.509 certificates and SSH host keys.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.9, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 21 products from unify, from unify, from unify and 18 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2017, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2017-09-25T21:29:00.913

Last Modified

2026-06-17T00:34:12.893

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 5.9 (MEDIUM)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: NONE
  • Availability Impact: NONE
Exploitability Score

8.6

Impact Score

2.9

Weaknesses
  • Type: Primary
    CWE-200
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System unify openstage_60_firmware 3.0 Yes
Hardware unify openstage_60 - No
Operating System unify openscape_desk_phone_ip_55g_sip_firmware 3.0 Yes
Hardware unify openscape_desk_phone_ip_55g_sip - No
Operating System unify openstage_15_firmware 3.0 Yes
Hardware unify openstage_15 - No
Operating System unify openstage_20e_firmware 3.0 Yes
Hardware unify openstage_20e - No
Operating System unify openstage_20_firmware 3.0 Yes
Hardware unify openstage_20 - No
Operating System unify openstage_40_firmware 3.0 Yes
Hardware unify openstage_40 - No
Operating System unify openscape_desk_phone_ip_35g_sip_firmware 3.0 Yes
Hardware unify openscape_desk_phone_ip_35g_sip - No
Operating System unify openscape_desk_phone_ip_35g_eco_sip_firmware 3.0 Yes
Hardware unify openscape_desk_phone_ip_35g_eco_sip - No
Operating System unify openscape_desk_phone_ip_55g_hfa_firmware 3.0 Yes
Hardware unify openscape_desk_phone_ip_55g_hfa - No
Operating System unify openscape_desk_phone_ip_35g_hfa_firmware 3.0 Yes
Hardware unify openscape_desk_phone_ip_35g_hfa - No
Operating System unify openstage_60_firmware 3.0 Yes
Hardware unify openscape_desk_phone_ip_35g_eco_hfa - No
References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For unify's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.