Cyber Resilience

CVE-2025-64647

Ibm Concert 1.0.0 – 2.2.0

Published
25 March 2026
Modified
26 March 2026
Patch / advisory
CVSS Score v3.1 5.9
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0020 10th percentile
Risk Priority 44 floored blend · peak EPSS

Summary

CVE-2025-64647 is a medium-severity Use of a Cryptographic Primitive with a Risky Implementation (CWE-1240) vulnerability in Ibm Concert. Its CVSS base score is 5.9 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Weaken Encryption (T1600); ranked at the 10th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2025-64647 is a vulnerability in IBM Concert versions 1.0.0 through 2.2.0, where the software uses weaker than expected cryptographic algorithms. This flaw, tagged under CWE-1240, could enable an attacker to decrypt highly sensitive information. The issue received a CVSS v3.1 base score of 5.9 (AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N) and was published on 2026-03-25.

A remote attacker requires no privileges or user interaction to target systems over the network, but exploitation demands high attack complexity. If successful, the attacker achieves high-impact confidentiality loss by decrypting sensitive data, with no impact on integrity or availability.

IBM provides mitigation details in its security advisory at https://www.ibm.com/support/pages/node/7267105.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

IBM Concert 1.0.0 through 2.2.0 uses weaker than expected cryptographic algorithms that could allow an attacker to decrypt highly sensitive information

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1600 Weaken Encryption Defense Impairment
Adversaries may compromise a network device’s encryption capability in order to bypass encryption that would otherwise protect data communications.
T1600.001 Reduce Key Space Defense Impairment
Adversaries may reduce the level of effort required to decrypt data transmitted over the network by reducing the cipher strength of encrypted communications.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-52360Same product: Ibm Concert
CVE-2024-49827Same product: Ibm Concert
CVE-2025-1721Same product: Ibm Concert
CVE-2024-41757Same product: Ibm Concert
CVE-2024-52893Same product: Ibm Concert
CVE-2025-64646Same product: Ibm Concert
CVE-2025-1761Same product: Ibm Concert
CVE-2024-52367Same product: Ibm Concert
CVE-2024-49354Same product: Ibm Concert
CVE-2025-33090Same product: Ibm Concert

Affected Assets

ibm
concert
1.0.0 — 2.2.0

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)
  • 12 hardening rules · 3 OS baselines
Validate
Prove the fix (OWASP ASVS)

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-1240

Requires specific, validated cryptographic primitives, reducing use of risky or improperly implemented primitives.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require use of approved, proven cryptographic implementations and forbid risky custom ones.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

prevents

Mandates approved cryptographic controls, directly preventing use of risky or non-compliant implementations.

finds

Security testing can detect use of weak or non-compliant cryptographic primitives before deployment.

prevents

Secure SDLC requires vetted crypto libraries and standards, reducing risky custom implementations.

prevents

Application security requirements can specify approved cryptographic standards and disallow risky primitives.

prevents

Secure architecture principles include selection of proven cryptographic components and avoidance of custom risky implementations.

prevents

Secure coding standards prohibit non-standard or disallowed cryptographic algorithms.

Hardening callouts derived

Configuration rules from DISA STIG baselines that bear on weaknesses of the type cited by this CVE. Each rule is shown with the relationship its mapping actually records, against the CWE it was authored against. Derived via CVE→CWE over `controls_xwalks` (authoritative rows only; rows rated `none` are excluded).

Oracle Linux 8 (2 rules)
  • V-248524 OL 8 must implement NIST FIPS-validated cryptography for the following: To provision digital signatures, to generate cryptographic hashes, and to protect data requiring data-at-rest protections in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards. prevents CWE-1240
  • V-248534 OL 8 must employ FIPS 140-2 approved cryptographic hashing algorithms for all stored passwords. prevents CWE-1240
Oracle Linux 9 (1 rule)
  • V-271628 OL 9 must employ FIPS 140-3 approved cryptographic hashing algorithms for all stored passwords. prevents CWE-1240
RHEL 8 (2 rules)
  • V-230223 RHEL 8 must implement NIST FIPS-validated cryptography for the following: To provision digital signatures, to generate cryptographic hashes, and to protect data requiring data-at-rest protections in accordance with applicable federal laws, Executive Orders, directives, policies, regulations, and standards. prevents CWE-1240
  • V-230224 All RHEL 8 local disk partitions must implement cryptographic mechanisms to prevent unauthorized disclosure or modification of all information that requires at rest protection. prevents CWE-1240

References