What is the CVSS score of CVE-2020-4476?

CVE-2020-4476 has a CVSS 3.1 base score of 7.5 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N. EPSS exploitation probability: 1.5%.

Is there a patch available for CVE-2020-4476?

Yes, a patch is available for CVE-2020-4476. Update the affected software to the latest version immediately.

Sterling File Gateway CVE-2020-4476

HIGH

2020-11-16 psirt@us.ibm.com

Information Disclosure IBM Sterling File Gateway

7.5

CVSS 3.1 · NVD

View

Vulnerability Assessment

Impact	CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required.
Exploit ScenarioDerived	This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

Patch available 1.5% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAI

IBM Sterling File Gateway 2.2.0.0 through 2.2.6.5 and 6.0.0.0 through 6.0.3.2 could allow a remote attacker to obtain sensitive information when a detailed technical error message is returned in the. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

IBM Sterling File Gateway 2.2.0.0 through 2.2.6.5 and 6.0.0.0 through 6.0.3.2 could allow a remote attacker to obtain sensitive information when a detailed technical error message is returned in the browser. This information could be used in further attacks against the system. IBM X-Force ID: 181778. Affected products include: Ibm Sterling File Gateway. Version information: through 2.2.6.5.

Know when Sterling File Gateway gets its next vulnerability

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 7.5 HIGH

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

DescriptionNVD

IBM Sterling File Gateway 2.2.0.0 through 2.2.6.5 and 6.0.0.0 through 6.0.3.2 could allow a remote attacker to obtain sensitive information when a detailed technical error message is returned in the browser. This information could be used in further attacks against the system. IBM X-Force ID: 181778.

Threat Intelligence Overview

EPSS Score

1.5%

Top 30% exploitable

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity HIGH

CISA KEV No

Public POC No

EPSS 1.5%

Patch available Yes

Active threat No

Deciding rule

HIGH severity (CVSS 7.0-8.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation· derived

None

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact· derived

Medium

Priority Score

Low Medium High Critical

KEV: 0

EPSS: +1

CVSS: +38

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:a:ibm:sterling_file_gateway:*:*:*:*:*:*:*:*

More in Sterling File Gateway

View all

CVE-2012-5937 CRITICAL Act Now

9.3 Apr 12

Unspecified vulnerability in the CLA2 server in IBM Gentran Integration Suite 4.3, Sterling Integrator 5.0 and 5.1, and

CVE-2018-1563 MEDIUM This Month POC

5.4 Jul 20

IBM Sterling B2B Integrator Standard Edition (IBM Sterling File Gateway 2.2.0 through 2.2.6) is vulnerable to cross-site

CVE-2026-75878 CRITICAL Act Now

9.1 Sep 18

Authentication bypass in IBM Sterling File Gateway lets a remote, unauthenticated attacker forge or inject an unvalidate

CVE-2021-20489 HIGH This Week

8.8 Oct 07

IBM Sterling File Gateway 2.2.0.0 through 6.1.1.0 is vulnerable to cross-site request forgery which could allow an attac

CVE-2020-4647 HIGH This Week

8.8 Nov 16

IBM Sterling File Gateway 2.2.0.0 through 2.2.6.5 and 6.0.0.0 through 6.0.3.2 is vulnerable to SQL injection. Rated high

CVE-2013-4002 HIGH This Week

7.1 Jul 23

XMLscanner.java in Apache Xerces2 Java Parser before 2.12.0, as used in the Java Runtime Environment (JRE) in IBM Java 5

CVE-2026-7769 HIGH This Week

8.1 Jul 28

SQL injection in IBM Sterling B2B Integrator and File Gateway allows authenticated remote attackers to view, add, modify

CVE-2026-19290 HIGH This Week

7.5 Sep 14

Improper access control in IBM Sterling File Gateway (6.2.0.0 through 6.2.0.6_1, 6.2.1.0-6.2.1.2, and 6.2.2.0-6.2.2.1) l

CVE-2025-36134 HIGH This Week

7.5 Nov 25

IBM Sterling B2B Integrator and Sterling File Gateway (6.0.0.0-6.1.2.7, 6.2.0.0-6.2.0.5, and 6.2.1.1) ship a sensitive s

CVE-2019-4147 HIGH This Week

7.2 Sep 16

IBM Sterling File Gateway 2.2.0.0 through 6.0.1.0 is vulnerable to SQL injection. Rated high severity (CVSS 7.2), this v

CVE-2013-2984 MEDIUM This Month

6.5 Jul 03

Directory traversal vulnerability in IBM Sterling B2B Integrator 5.1 and 5.2 and Sterling File Gateway 2.1 and 2.2 allow

CVE-2013-2982 MEDIUM This Month

6.5 Jul 03

IBM Sterling B2B Integrator 5.1 and 5.2 and Sterling File Gateway 2.1 and 2.2 allow remote authenticated users to upload

Same technique Information Disclosure

View all

CVE-2019-2725 CRITICAL POC

9.8

CVE-2021-34523 CRITICAL POC

9.0

CVE-2013-2251 CRITICAL POC

9.8

CVE-2017-5638 CRITICAL POC

9.8

CVE-2025-24813 CRITICAL POC

9.8

CVE-2025-68613 HIGH POC

8.8

CVE-2015-1701 HIGH POC

7.8

CVE-2017-0147 HIGH POC

7.5

References

Advisories & patches

PATCH https://www.ibm.com/support/pages/node/6367971 ADVISORY https://exchange.xforce.ibmcloud.com/vulnerabilities/181778

Search Externally

GitHub PoC

Exploit-DB PacketStorm Snyk Rapid7 Nuclei Templates Trickest PoC

Back