What is CVE-2020-4395?

CVE-2020-4395 is a medium-severity vulnerability in IBM Security Access Manager Appliance, classified under Insufficient Session Expiration. CVSS score: 5.4/10. Published 2020-10-14.

How severe is CVE-2020-4395?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Vulnerability in IBM Security Access Manager Appliance

CVE-2020-4395

IBM Security Access Manager Appliance 9.0.7 does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 179358.

Published 2020-10-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (45.6th percentile), scored 2026-10-20.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

IBM Security Access Manager Appliance — versions 9.0.7
IBM Security Access Manager Appliance — versions 9.0.7

Weakness classification (CWE)

CWE-613 — Insufficient Session Expiration

References

www.ibm.com/support/pages/node/6347592 (Patch, Vendor Advisory)
exchange.xforce.ibmcloud.com/vulnerabilities/179358 (VDB Entry, vdb-entry, Vendor Advisory)

Frequently asked questions

What is CVE-2020-4395?: CVE-2020-4395 is a medium-severity vulnerability in IBM Security Access Manager Appliance, classified under Insufficient Session Expiration. CVSS score: 5.4/10. Published 2020-10-14.
How severe is CVE-2020-4395?: Medium severity. CVSS v3 base score is 5.4 out of 10.