CVE-2025-36065Network attack vector

User impersonation via persistent browser sessions

Published Jan 20, 2026 · Updated Jan 20, 2026

Session expiration failure in IBM Sterling Connect:Express Adapter 5.2.0.00 through 5.2.0.12 allows remote authenticated users to impersonate users. The web interface retains an authenticated session after its browser closes and continues accepting the associated session identifier for authorization. Reuse of that still-valid session grants access within the impersonated account’s permissions, including reading or changing data and interrupting operations.

CVSS severity6.3
Medium
EPSS probability0.17%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Session expiration failure in IBM Sterling Connect:Express Adapter 5.2.0.00 through 5.2.0.12 allows remote authenticated users to impersonate users. The web interface retains an authenticated session after its browser closes and continues accepting the associated session identifier for authorization. Reuse of that still-valid session grants access within the impersonated account’s permissions, including reading or changing data and interrupting operations.

The record

CVE
CVE-2025-36065
Published
Jan 20, 2026
Updated
Jan 20, 2026
Vendor
IBM
Product
Sterling Connect:Express Adapter for Sterling B2B Integrator
Classifications
CWE-613, T1550.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 20, 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=5.2.0.00 <=5.2.0.12

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

IBM · Sterling Connect:Express Adapter for Sterling B2B Integratorversion=5.2.0.00 <=5.2.0.12

Published CVSS scores

6.5NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
6.3IBMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-613Insufficient Session Expiration
T1550.004Use Alternate Authentication Material: Web Session Cookie

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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