Security readout for executives and security teams
Plain-English summary
IBM reports that Cloud Pak for Data System - Cyclops can retain default manufacturing passwords used during installation. An attacker could bypass authentication and make unauthorized changes. The issue is rated medium, but it matters where CPDS management paths are reachable or installation credentials were not removed.
Executive priority
Treat this as a targeted remediation item, not an emergency internet-wide crisis. Prioritize it for environments running CPDS Cyclops because default credentials can undermine administrative trust even with medium CVSS severity.
Technical view
CVE-2025-36221 affects IBM Cloud Pak for Data System - Cyclops 11.3.0.2 through Interim Fix 002. The weakness is CWE-1392, use of default credentials. CVSS 3.1 is 5.3, network exploitable, low complexity, no privileges, no user interaction, with low integrity impact only.
Likely exposure
Exposure appears limited to IBM Cloud Pak for Data System - Cyclops deployments on the listed affected versions, especially systems reachable over a network or retaining installation/manufacturing credentials.
Exploitation context
The bundle does not report active exploitation, and KEV status is false. The available evidence supports authentication bypass risk from default passwords, but not public exploit activity or weaponized abuse.
Researcher notes
The key signal is CWE-1392 default credential exposure. The CVSS vector indicates remote unauthenticated reachability with integrity impact, but no confidentiality or availability impact. Source detail is sparse, so validation should stay tied to IBM’s advisory and local configuration evidence.
Mitigation direction
- Review IBM advisory 7273923 for the vendor-approved fix or interim guidance.
- Prioritize affected CPDS Cyclops systems with network-reachable administrative paths.
- Remove or rotate any default manufacturing or installation credentials per IBM guidance.
- Restrict management access to trusted administrative networks while remediation is pending.
Validation and detection
- Inventory IBM Cloud Pak for Data System - Cyclops versions in the environment.
- Confirm whether deployments are 11.3.0.2 through Interim Fix 002.
- Check vendor guidance for how to verify patched or remediated status.
- Review authentication logs for unexpected administrative access attempts.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-1392: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2025-36221 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 5.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N3.91.4ibmVulnerability scoring details
Base CVSS 3.1 score
5.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
Source materials
- CVE List V5 sourceCVE List V5
- https://www.ibm.com/support/pages/node/7273923CVE reference, ibm · vendor-advisory, patch
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Use of Default Credentials
Use of Default Credentials represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.