Observable discrepancy in IBM Sterling File Gateway
Priority LOW 21CWE-203Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-203.
Summary
IBM Sterling File Gateway 2.2.0.0 through 6.1.1.0 could allow an authenticated attacker to enumerate usernames due to there being an observable discrepancy in returned messages. IBM X-Force ID: 195568.
Why it matters now
EPSS 0.00727 54th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| IBM | Sterling File Gateway | 2.2.0.0; 6.0.0.0; 5.2.6.5_3; 6.0.3.4; 6.1.0.0; 6.1.0.1 | — | No fix listed | CNA |
- Sterling File Gateway VendorIBM Affected 2.2.0.0; 6.0.0.0; 5.2.6.5_3; 6.0.3.4; 6.1.0.0; 6.1.0.1 Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ibm:sterling_b2b_integrator:*:*:*:*:*:*:*:* | 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 | Vulnerable | IBM |
- cpe:2.3:a:ibm:sterling_b2b_integrator:*:*:*:*:*:*:*:* Versions 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 Vulnerable ·IBM
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-20376
- 2026-10-03 Alias added: GHSA-6ww2-4r5v-mm62
References
More IBM Sterling B2b Integrator vulnerabilities
- TI-2015-06198 Serialized-object interfaces in certain IBM analytics, business solutions, cognitive, IT… KEVCVSS 3.1CRITICAL 9.8
- TI-2013-03496 XMLscanner.java in Apache Xerces2 Java Parser before 2.12.0, as used in the Java Runtime… CVSS 2.0HIGH 7.1
- TI-2019-03450 Deserialization of untrusted data in IBM Sterling B2B Integrator CVSS 3.1HIGH 8.8
- TI-2012-04950 Unspecified vulnerability in the CLA2 server in IBM Gentran Integration Suite 4.3… CVSS 2.0HIGH 9.3
- TI-2021-16494 SQL injection in IBM Sterling B2B Integrator CVSS 3.1CRITICAL 9.8
- TI-2021-10535 SQL injection in IBM Sterling B2B Integrator CVSS 3.1CRITICAL 9.8
Sources
- CVE-2021-20376 · CVE Program
- CVE-2021-20376 · NVD
- FIRST EPSS
- GHSA-6ww2-4r5v-mm62 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences