CVE-2025-64648Network attack vector

Sensitive-information exposure via cleartext network transmission

Published Mar 25, 2026 · Updated Mar 25, 2026

Cleartext transmission in IBM Concert 1.0.0 through 2.2.0 allows man-in-the-middle attackers to read sensitive information. IBM identifies the flaw only as cleartext data transmission and does not disclose the affected protocol, endpoint, or data fields. Exploitation requires a position that permits network-traffic interception; the reported consequence is disclosure without data alteration or service interruption.

CVSS severity5.9
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext transmission in IBM Concert 1.0.0 through 2.2.0 allows man-in-the-middle attackers to read sensitive information. IBM identifies the flaw only as cleartext data transmission and does not disclose the affected protocol, endpoint, or data fields. Exploitation requires a position that permits network-traffic interception; the reported consequence is disclosure without data alteration or service interruption.

The record

CVE
CVE-2025-64648
Published
Mar 25, 2026
Updated
Mar 25, 2026
Vendor
IBM
Product
Concert
Classifications
CWE-319, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=1.0.0 <=2.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

IBM · Concertversion=1.0.0 <=2.2.0

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-319Cleartext Transmission of Sensitive Information
T1557Adversary-in-the-Middle

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

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Your stack

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