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CVE-2016-3127 Blackberry CVE debrief

CVE-2016-3127 is a high-severity information disclosure issue in BlackBerry Good Control Server's logging implementation. The supplied CVE description says that versions earlier than 2.3.53.62 can allow remote attackers to gain and use encryption keys that were written to diagnostic logs, which may then be used to access certain resources in a customer's Good deployment. The risk is centered on exposure of sensitive material in logs, so environments that retain or expose diagnostic files deserve immediate review.

Vendor
Blackberry
Product
CVE-2016-3127
CVSS
HIGH 7.5
CISA KEV
Not listed in stored evidence
Original CVE published
2017-03-03
Original CVE updated
2026-05-13
Advisory published
2017-03-03
Advisory updated
2026-05-13

Who should care

Administrators, security teams, and support staff running BlackBerry Good Control Server, especially environments that store, forward, or centrally collect diagnostic logs.

Technical summary

The issue is classified by NVD as CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor). According to the supplied description, the logging implementation may record encryption keys, and an attacker who can access the relevant diagnostic log files—either through a valid logon or through an unrelated compromise of the server—may use those keys to access certain resources in the customer’s Good deployment. NVD rates the issue CVSS 3.0 7.5 HIGH (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N).

Defensive priority

High

Recommended defensive actions

  • Upgrade BlackBerry Good Control Server to the vendor-fixed release referenced in the advisory; the supplied CVE description identifies versions earlier than 2.3.53.62 as affected.
  • Restrict access to diagnostic log files and any log aggregation or support bundles that may contain sensitive data.
  • Review existing logs for possible exposure of encryption keys and rotate or revoke any credentials or keys that may have been written to logs.
  • Investigate whether the server or adjacent systems were compromised, since the issue can also be reached if an attacker gains access to the host.
  • Use the BlackBerry advisory and the NVD record to confirm the affected build range and the appropriate remediation path for your deployment.

Evidence notes

The supplied corpus shows the CVE was published on 2017-03-03 and the NVD record was modified on 2026-05-13. NVD lists the weakness as CWE-200 and provides the CVSS 3.0 vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. The corpus also contains two version references: the CVE description states that versions earlier than 2.3.53.62 are affected, while NVD’s vulnerable CPE mapping currently ends at 2.2.511.26. Both are retained as provided without reconciliation beyond the source text.

Official resources

Publicly disclosed in the CVE/NVD record on 2017-03-03; the supplied NVD entry is marked Modified as of 2026-05-13.