Vulnerability · CVE-2025-36377
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 syste
Published Feb 17, 2026 · catalog updated Feb 18, 2026 · IBM Security QRadar EDR
Last checked Nov 13, 2026. A connected source was read within the last 7 days.
Check if you run it
No confirmed exploitation is on record for CVE-2025-36377. EPSS is 0.22%. Act only if a listed version of IBM Security QRadar EDR is installed.
Gaps on this record
- No vendor fix or required action is stored. Compare the linked advisory before you change production.
Same product and reporting
- CVE-2025-36376 · Medium
- CVE-2025-36379 · Medium
- Severity
- Medium6.3
- Known exploitation
- Not in CISA/VulnCheck KEV
- EPSS
- 0.22%
- Remediation
- Vendor / distro source
- Affected products
- vendor IBM Security QRadar EDR 3.12 ≤3.12.23
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.
Are you affected?
Enter the version you run. The result uses only the ranges stored on this record.
The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.
- vendor IBM Security QRadar EDR 3.12 ≤3.12.233.12 ≤3.12.23
How to fix CVE-2025-36377
No stored fix
No vendor fix text is stored. Use the linked advisory before you change production.
Version check
Seen in 3.12 ≤3.12.23
Advisory
Open the cve_org record and follow its fix.
Official advisories
What to do
Three questions, each answered from this record only. Confirm the vendor advisory before you patch.
Should you patch?
No confirmed exploitation is on record for CVE-2025-36377. EPSS is 0.22%. Act only if a listed version of IBM Security QRadar EDR is installed.
Which versions are affected?
Compare what you have installed with IBM Security QRadar EDR 3.12 ≤3.12.23 3.12 ≤3.12.23. Compare the installed version with the linked vendor advisory before you change production.
What should an analyst verify?
No weakness class is stored. EPSS 0.22%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.
Code
The project this record applies to. Exploit listings stay in References.
No public source repository is identified for this product.
Timeline
Detection, updates, and resolution for this record.
Feb 17, 2026 · EUVD
Detected
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.
Feb 18, 2026 · EUVD
Updated
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.
Sources
- CVE.orgVulnerability recordCVE-2025-36377
Official CVE identifier
cve.org - FIRST EPSSExploitation probabilityCVE-2025-36377
30-day exploitation probability 0.22%
first.org - EUVDVulnerability recordEUVD-2025-207853
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.
euvd.enisa.europa.eu
References
Freshness
Last verified in this catalog Nov 13, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.
- FIRST EPSSNov 13, 2026
- CVE.orgNov 9, 2026
- EUVDNov 9, 2026