Cyber Resilience

CVE-2025-36115

Auth Bypass in Ibm Sterling Connect\ express_adapter_for_sterling_b2b_integrator

Published
20 January 2026
Modified
03 February 2026
Patch / advisory
CVSS Score v3.1 6.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
EPSS Score 0.0014 3th percentile
Risk Priority 35 floored blend · peak EPSS

Summary

CVE-2025-36115 is a medium-severity Session Fixation (CWE-384) vulnerability in Ibm Sterling Connect\. Its CVSS base score is 6.3 (Medium).

Operationally, ranked at the 3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-12 (Session Termination) and SC-23 (Session Authenticity) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

IBM Sterling Connect:Express Adapter for Sterling B2B Integrator 5.2.0.00 through 5.2.0.12 does not disallow the session id after use which could allow an authenticated user to impersonate another user on the system.

CWE(s)

Related Threats

CVEs Like This One

CVE-2025-36137Same product: Ibm Sterling Connect\
CVE-2025-36064Same product: Ibm Sterling Connect\
CVE-2025-36063Same product: Ibm Sterling Connect\
CVE-2025-36066Same product: Ibm Sterling Connect\
CVE-2025-36113Same product: Ibm Sterling Connect\
CVE-2025-36065Same product: Ibm Sterling Connect\
CVE-2023-38002Same vendor: Ibm
CVE-2025-36117Same vendor: Ibm
CVE-2023-50941Same vendor: Ibm
CVE-2023-38018Same vendor: Ibm

Affected Assets

ibm
sterling connect\
express_adapter_for_sterling_b2b_integrator

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)
Detect
Catch it (NIST detect / respond)

Harden
Shrink the surface (DISA STIG)

Validate
Prove the fix (OWASP ASVS)
  • V4.4.4
  • V7.6.2

Mitigating Controls (NIST 800-53 r5) AI

prevent

Directly requires automatic session termination that invalidates the session identifier, blocking reuse by another authenticated user.

prevent

Protects session authenticity by ensuring session identifiers cannot be fixed or replayed to impersonate another user.

prevent

Forces re-authentication before sensitive actions, limiting the window in which a captured or fixed session ID remains usable.

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.AA-03 mostly match
prevents

Proper authentication processes must invalidate prior session identifiers to prevent fixation attacks.

PR.AA-01 partial match
prevents

Managing identities and credentials includes handling session identifiers as temporary credentials that must be invalidated on re-authentication.

PR.AA-04 partial match
prevents

Protecting and verifying identity assertions encompasses secure handling and regeneration of session tokens.

PR.PS-01 partial match
prevents

Configuration baselines can enforce session regeneration and timeout settings that block fixation.

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.

detects

Security testing can detect session-fixation issues, yet the weakness absence does not replace comprehensive testing.

degrades

Access-control policy can mandate session invalidation on re-authentication, but does not prescribe the technical mechanism.

degrades

Identity-management procedures can require new session tokens after login, yet the control is broader than session handling.

degrades

Authentication-information rules can include session-token lifecycle requirements, but the control focuses on credential management.

prevents

Secure-SDLC requirement can embed session-fixation checks, but eliminating the weakness does not satisfy the full SDLC control.

prevents

Application-security requirements can specify session handling, yet the weakness fix alone does not meet the broader requirement.

References