CVE-2021-20375

MEDIUMNVD 6.56.5—

6.5

IBM Sterling File Gateway 2.2.0.0 through 6.1.1.0 could allow an authenticated user to intercept and replace a message sent by another user due to improper access controls. IBM X-Force ID: 195567.

CVSS v3: 6.5
EG Score: 6.5(medium)
EPSS: 32.5%
KEV: Not listed

Published

October 7, 2021

Last Modified

November 21, 2024

References (4)

psirt@ushttps://exchange.xforce.ibmcloud.com/vulnerabilities/195567
psirt@ushttps://www.ibm.com/support/pages/node/6496803
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/195567
af854a3a-2127-422b-91ae-364da2661108https://www.ibm.com/support/pages/node/6496803

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-287Improper Authentication

Data Freshness Timeline

(refreshed 14× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

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Frequently asked(5)

What is CVE-2021-20375?

CVE-2021-20375 is a medium vulnerability published on October 7, 2021. IBM Sterling File Gateway 2.2.0.0 through 6.1.1.0 could allow an authenticated user to intercept and replace a message sent by another user due to improper access controls. IBM X-Force ID: 195567.

When was CVE-2021-20375 disclosed?

CVE-2021-20375 was first published in the National Vulnerability Database on October 7, 2021, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-20375 actively exploited?

CVE-2021-20375 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 32.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-20375?

CVE-2021-20375 has a CVSS v3 base score of 6.5 (NVD).

How do I remediate CVE-2021-20375?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-20375, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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CVE-2021-20375

📅 Published

🔄 Last Modified

🔗 References (4)

Weakness Classification(1)

Data Freshness Timeline

❓ Frequently asked(5)

Dependency Blast Radius

Is Your Infrastructure Affected by CVE-2021-20375?

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Published

Last Modified

References (4)

Frequently asked(5)

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