6.5

CVE-2021-20473: ibm sterling_file_gateway Insufficient Session Expiration

CVSS: 6.5v3.1MediumModified
Published 07-10-2021Last modified 16-09-2024
Open JSON

Vulnerability summary

CVE-2021-20473 is a medium (CVSS 6.5) Insufficient Session Expiration vulnerability in ibm sterling_file_gateway. EPSS estimates a 0.48% chance of exploitation in the next 30 days, higher than 40.2% of scored vulnerabilities.

Overall risk
26/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.48%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 07-10-2021
    PublishedVulnerability first disclosed.
  2. 16-09-2024
    Last modifiedVulnerability information updated.

Description

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 metrics

4 scores · 2 sources · 3 versions

EPSS trend

Probability

0.48%

Chance of exploitation in the next 30 days

Percentile

40%

Versus all other CVEs

30-day change

0.00 pp

From 0.48% on 22-09-2026

22-09-202622-10-2026
EPSS score
0.48%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ibm1 product
  • sterling_file_gateway2.2.0.0 | 6.0.0.0 | 5.2.6.5_3 | 6.0.3.4 | 6.1.0.0 | 6.1.0.1 | ≥ 2.2.0.0, ≤ 5.2.6.5_3 | ≥ 6.0.0.0, ≤ 6.0.3.4 | ≥ 6.1.0.0, ≤ 6.1.0.1

1 vendor · 1 product

References

2 links