CVE-2021-20473
IBM Sterling File Gateway User Interface 2.2.0.0 through 6.1.1.0 does not invalidate session...
IBM Sterling File Gateway User Interface 2.2.0.0 through 6.1.1.0 does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 196944.
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 Sterling File Gateway User Interface 2.2.0.0 through 6.1.1.0 does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 196944.
- Record
CVE-2021-20473- CVSS 3.0
- 6.3 Medium
CVSS:3.0/I:L/AC:L/PR:L/AV:N/UI:N/A:L/C:L/S:U/RL:O/E:U/RC:C - Updated
- 2026-11-02
EUVDEUVD-2021-7891
IBM Sterling File Gateway User Interface 2.2.0.0 through 6.1.1.0 does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 196944.
- Record
EUVD-2021-7891- CVSS 3.0
- 6.3 Medium
CVSS:3.0/I:L/AC:L/PR:L/AV:N/UI:N/A:L/C:L/S:U/RL:O/E:U/RC:C - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-332g-g9j2-2jvj No score
IBM Sterling File Gateway User Interface 2.2.0.0 through 6.1.1.0 does not invalidate session...
IBM Sterling File Gateway User Interface 2.2.0.0 through 6.1.1.0 does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 196944.
- Record
GHSA-332g-g9j2-2jvj- Weakness
- CWE-613
- Updated
- 2026-11-02
NVD
IBM Sterling File Gateway User Interface 2.2.0.0 through 6.1.1.0 does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 196944.
- Record
CVE-2021-20473- CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N - 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
- 4.0 Medium
AV:N/AC:L/Au:S/C:N/I:P/A:N - 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-2021-20473 is a medium vulnerability (CVSS 6.3) in Ibm Sterling File Gateway, published October 7, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.48%, the 41st percentile. No source names a fixed version.