CVE-2020-4767

Name: CVE-2020-4767
Creator: NVD / NIST
Published: 2020-10-28T17:15:12.92+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.58%

Last modified Jun 17, 2026

CVE-2020-4767 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. IBM Sterling Connect Direct for Microsoft Windows 4.7, 4.8, 6.0, and 6.1 could allow a remote attacker to cause a denial of service, caused by a buffer over-read. Bysending a specially crafted request, the attacker could cause the application to crash. EPSS estimates a 1.58% chance of exploitation in the next 30 days.

Description

IBM Sterling Connect Direct for Microsoft Windows 4.7, 4.8, 6.0, and 6.1 could allow a remote attacker to cause a denial of service, caused by a buffer over-read. Bysending a specially crafted request, the attacker could cause the application to crash. IBM X-Force ID: 188906.

Metrics

CVSS 3.1

7.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

1.58%

72.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-125

Affected Software

Vendor	Product	Versions
Ibm	Sterling Connect\	>= 4.7.0.0, < 4.7.0.7
Ibm	Sterling Connect\	>= 4.8.0.0, < 4.8.0.3
Ibm	Sterling Connect\	>= 6.0.0.0, < 6.0.0.4
Ibm	Sterling Connect\	>= 6.1.0.0, < 6.1.0.1

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/188906VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6356019Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/188906VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6356019Vendor Advisory

Timeline

Published: Oct 28, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-4767?

How severe is CVE-2020-4767?

CVE-2020-4767 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.58% probability of exploitation in the next 30 days.

How do I fix CVE-2020-4767?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-4767?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST