CVE-2021-20473

mediumpriority · track · 26EPSS 0.005 · 41 %ileEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.48% (41st) EPSS

CVSS 4 · medium

Is it mine?

9 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.04mediumAV:N/AC:L/Au:S/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 8 · impact 2.9

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v3.06.3mediumCVSS:3.0/I:L/AC:L/PR:L/AV:N/UI:N/A:L/C:L/S:U/RL:O/E:U/RC:Csecondary · ENISA EU

v3.06.3mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:Lsecondary · psirt@us.ibm.com USexploitability 2.8 · impact 3.4

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-613USprimary

affected products (9)

Products and version ranges known to be affected.

IBM Sterling File Gateway≤ 6.0.3.4enisa_euvdEU
IBM Sterling File Gateway≤ 6.1.0.0enisa_euvdEU
IBM Sterling File Gateway≤ 5.2.6.5_3enisa_euvdEU
IBM Sterling File Gateway≤ 6.0.0.0enisa_euvdEU
IBM Sterling File Gateway≤ 2.2.0.0enisa_euvdEU
IBM Sterling File Gateway≤ 6.1.0.1enisa_euvdEU
ibm sterling file gateway2.2.0.0 → 5.2.6.5_3nvdUScpe:2.3:a:ibm:sterling_file_gateway:*:*:*:*:*:*:*:*
ibm sterling file gateway6.0.0.0 → 6.0.3.4nvdUScpe:2.3:a:ibm:sterling_file_gateway:*:*:*:*:*:*:*:*
ibm sterling file gateway6.1.0.0 → 6.1.0.1nvdUScpe:2.3:a:ibm:sterling_file_gateway:*:*:*:*:*:*:*:*

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2021-10-07modified 2026-06-17

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+728 more

references (6)

External citations — patches, advisories, analysis.

scry

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