CVE-2025-33102Network attack vector

Sensitive-data decryption via weak cryptographic algorithms

Published Sep 1, 2025 · Updated Sep 2, 2025

Weak cryptography in IBM Concert Software 1.0.0 through 1.1.0 allows remote attackers to decrypt highly sensitive information. IBM has not disclosed the affected cryptographic component, algorithm, protected data, or operation that applies the weak primitive. Exploitation requires network access and high-complexity conditions but no authentication or user interaction, and the reported effect is disclosure only.

CVSS severity5.9
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Weak cryptography in IBM Concert Software 1.0.0 through 1.1.0 allows remote attackers to decrypt highly sensitive information. IBM has not disclosed the affected cryptographic component, algorithm, protected data, or operation that applies the weak primitive. Exploitation requires network access and high-complexity conditions but no authentication or user interaction, and the reported effect is disclosure only.

The record

CVE
CVE-2025-33102
Published
Sep 1, 2025
Updated
Sep 2, 2025
Vendor
IBM
Product
IBM Concert
Classifications
CWE-327
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 1, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 2, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0.0 <=1.1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · IBM Concertversion=1.0.0 <=1.1.0

Published CVSS scores

5.9IBMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-327Use of a Broken or Risky Cryptographic Algorithm

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo