CVE-2021-20378
IBM Guardium Data Encryption (GDE) 3.0.0.2 and 4.0.0.4 does not invalidate session after logout...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2021-20378- CVSS 3.0
- 6.3 Medium
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 - Updated
- 2026-11-02
EUVDEUVD-2021-7796
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.
- Record
EUVD-2021-7796- CVSS 3.0
- 6.3 Medium
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 - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-7mrw-f6g3-g543 No score
IBM Guardium Data Encryption (GDE) 3.0.0.2 and 4.0.0.4 does not invalidate session after logout...
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.
- Record
GHSA-7mrw-f6g3-g543- Weakness
- CWE-613
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2021-20378- CVSS 3.1
- 8.8 High
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 3.0
- 6.3 Medium
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L - CVSS 2.0
- 6.5 Medium
AV:N/AC:L/Au:S/C:P/I:P/A:P - Weakness
- CWE-613
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-20378 is a medium vulnerability (CVSS 6.3) in Ibm Guardium Data Encryption, published July 7, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.43%, the 37th percentile. No source names a fixed version.