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CVE-2016-3021 IBM CVE debrief

CVE-2016-3021 is a low-severity information-disclosure issue in IBM Security Access Manager. According to the CVE description, an authenticated attacker could trigger an error message with a specially crafted HTTP request and learn sensitive information from that response. NVD classifies the weakness as CWE-200 and assigns a low confidentiality impact with no integrity or availability impact.

Vendor
IBM
Product
CVE-2016-3021
CVSS
LOW 2.7
CISA KEV
Not listed in stored evidence
Original CVE published
2017-02-01
Original CVE updated
2026-05-13
Advisory published
2017-02-01
Advisory updated
2026-05-13

Who should care

Administrators and security teams running IBM Security Access Manager for Web or Mobile firmware builds listed by NVD, especially environments that expose the affected HTTP endpoints to authenticated users.

Technical summary

NVD lists affected IBM Security Access Manager firmware builds across Security Access Manager for Web 7.0 and 8.0, Security Access Manager for Mobile 8.0, and Security Access Manager 9.0. The issue is an authenticated information disclosure in which error handling can reveal sensitive data when a specially crafted HTTP request is processed. The NVD CVSS v3.0 vector is AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N, reflecting network reachability, high privileges required, and limited confidentiality impact.

Defensive priority

Moderate for exposed IBM IAM deployments, but overall priority is lower than code-execution or privilege-escalation issues because the impact is limited to information disclosure and requires authenticated access.

Recommended defensive actions

  • Identify whether IBM Security Access Manager for Web, Mobile, or 9.0 firmware builds listed in NVD are deployed in your environment.
  • Review the IBM vendor advisory referenced in the CVE record for the vendor's remediation guidance.
  • Apply the vendor-recommended fix or upgrade path if an affected build is in use.
  • Limit authenticated user access to only the HTTP functions and roles that are necessary.
  • Monitor logs for repeated error-triggering requests that may indicate attempts to elicit sensitive information.
  • Verify after remediation that the affected error condition no longer returns sensitive details.

Evidence notes

This debrief is based on the CVE description provided in the source corpus, the NVD record metadata, and the linked IBM vendor advisory and SecurityFocus reference. NVD marks the vulnerability as Modified on 2026-05-13 and assigns CWE-200 with CVSS v3.0 AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N. No exploit details or patch bulletin text beyond the referenced advisory were supplied in the corpus.

Official resources

CVE published 2017-02-01 and last modified 2026-05-13, per the supplied CVE/NVD timeline fields.