# CVE-2025-36084: IBM Concert weak cryptographic algorithm

Source: https://junglewise.ai/threats/cve-2025-36084-ibm-concert-1-0-0-through-3-0-0-uses-weaker-than-expected  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-22. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2025-36084 · Severity: medium · CVSS 5.9 · Published 2026-09-22

IBM Concert, a software platform, uses weaker-than-expected cryptographic algorithms to protect sensitive data. An attacker with network access could potentially decrypt information that is intended to remain confidential, compromising data security and compliance posture.

Technologies: [IBM Concert](https://junglewise.ai/threats/technologies/concert). Vendors: [IBM](https://junglewise.ai/threats/vendors/ibm).

## Quick answers

**Is CVE-2025-36084 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-36084 being exploited in the wild.

**How severe is CVE-2025-36084?** Medium severity, with a CVSS score of 5.9, published 22 September 2026.

**Which products and versions are affected?** IBM Concert 1.0.0 through 3.0.0.

**Is there a fix for CVE-2025-36084?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2025-36084 attacked?** It is attacked over the network.

**Am I affected by CVE-2025-36084?** Check whether you run IBM Concert at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

IBM Concert versions 1.0.0 through 3.0.0 implement cryptographic algorithms that are weaker than industry standards, allowing attackers to decrypt sensitive information. The vulnerability is exploitable remotely without authentication, though the complexity suggests computational effort is required. No public exploitation has been reported.

## Affected products

- IBM Concert 1.0.0 through 3.0.0

## Timeline

- 2025-09-22: disclosed

## References

- [https://www.ibm.com/support/pages/node/7288830](https://www.ibm.com/support/pages/node/7288830)

## Related threats

- [IBM Concert command injection vulnerability](https://junglewise.ai/threats/cve-2026-6715-ibm-concert-1-0-through-3-0-1-1-allows-an-attacker-can-supply)
- [IBM Concert arbitrary command execution in dependencies](https://junglewise.ai/threats/cve-2026-15266-ibm-concert-1-0-through-3-0-1-1-contains-components-that-allow)
- [IBM Concert weak cryptographic algorithms allow decryption](https://junglewise.ai/threats/cve-2026-6719-ibm-concert-1-0-through-3-0-0-uses-weaker-than-expected)
- [IBM Concert cross-site scripting in Web UI](https://junglewise.ai/threats/cve-2026-4413-ibm-concert-1-0-through-3-0-0-is-vulnerable-to-cross-site)
- [IBM Concert local web cache accessible to other users](https://junglewise.ai/threats/cve-2026-4405-ibm-concert-1-0-through-3-0-0-allows-web-page-cache-to-be-stored)