IBM Guardium Data Encryption (GDE) 3.0.0.2 and 4.0.0.4 does not invalidate session after logout which could allow an authenticated user to…

published 2021-07-07 5y ago modified 2026-06-17 4mo ago also EUVD-2021-7796

cvss: 6.3; version 3.0, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.4%; EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits: 0; none known

IBM Guardium Data Encryption (GDE) 3.0.0.2 and 4.0.0.4 does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 195709.

Patch / fix

links 1

ibm.com/support/pages/node/6469407 advisory

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Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by	version	score	vector
CNA	3.0	6.3	CVSS:3.0/I:L/UI:N/C:L/AC:L/S:U/AV:N/PR:L/A:L/E:U/RC:C/RL:O
NVD	3.1	8.8	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA	3.0	6.3	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
NVD	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

IBM Guardium Data Encryption

Classification

Weakness

CWE-613 DEPRECATED: Insufficient Session Expiration

References

ibm.com /support/pages/node/6469407
patch, vendor-advisory
exchange.xforce.ibmcloud.com /vulnerabilities/195709
vdb-entry, vendor-advisory

Sources

CVE List CVE-2021-20378
NVD CVE-2021-20378

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