CVE-2025-36377
Published: 17 February 2026
Summary
CVE-2025-36377 is a medium-severity Insufficient Session Expiration (CWE-613) vulnerability in Ibm Qradar Edr. Its CVSS base score is 6.3 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Web Session Cookie (T1550.004); ranked at the 8.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 AC-12 (Session Termination) and IA-11 (Re-authentication).
Deeper analysis
IBM Security QRadar EDR versions 3.12 through 3.12.23 contain a vulnerability tracked as CVE-2025-36377, where the application fails to invalidate sessions after expiration. This issue, classified under CWE-613 (Insufficient Session Expiration), carries a CVSS v3.1 base score of 6.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L), rated as medium severity. An authenticated user could exploit this flaw to impersonate another user on the system by continuing to use an expired session token.
The attack requires low-privileged authentication (PR:L) and network access (AV:N) with low complexity (AC:L) and no user interaction (UI:N). A malicious low-privileged user could leverage a previously valid but expired session to perform actions as another user, potentially leading to limited impacts on confidentiality, integrity, and availability (C:L/I:L/A:L). The scope remains unchanged (S:U), making it feasible in environments where session management is critical for access control.
IBM has published an advisory at https://www.ibm.com/support/pages/node/7260390 addressing this vulnerability, including details on mitigation and available patches for affected QRadar EDR versions. Security practitioners should review the advisory for upgrade paths beyond version 3.12.23 to invalidate sessions properly and prevent unauthorized impersonation.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-207853
Vulnerability details
IBM Security QRadar EDR 3.12 through 3.12.23 does not invalidate session after a session expiration which could allow an authenticated user to impersonate another user on the system.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Insufficient session expiration (CWE-613) directly enables reuse of expired web session tokens for impersonation, mapping to use of web session cookies as alternate authentication material.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly requires automatic session termination after defined expiration events, eliminating the exact flaw that lets expired tokens remain usable for impersonation.
Protects session authenticity by ensuring only valid, non-expired sessions can be used, blocking continued use of stale tokens.
Forces re-authentication after session lifetime thresholds, preventing an authenticated user from leveraging an expired session to impersonate another.