CVE-2020-4771

Name: CVE-2020-4771
Creator: NVD / NIST
Published: 2020-11-23T17:15:12.5+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 1.55%

Last modified Jun 17, 2026

CVE-2020-4771 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. IBM Spectrum Protect Operations Center 8.1.0.000 through 8.1.10.and 7.1.0.000 through 7.1.11 could allow a remote attacker to obtain sensitive information, caused by improper authentication of a websocket endpoint. By using known tools to subscribe to the websocket event stream, an attacker could exploit this vulnerability to obtain sensitive information. EPSS estimates a 1.55% chance of exploitation in the next 30 days.

Description

IBM Spectrum Protect Operations Center 8.1.0.000 through 8.1.10.and 7.1.0.000 through 7.1.11 could allow a remote attacker to obtain sensitive information, caused by improper authentication of a websocket endpoint. By using known tools to subscribe to the websocket event stream, an attacker could exploit this vulnerability to obtain sensitive information. IBM X-Force ID: 188993.

Metrics

CVSS 3.1

5.3/10

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

EPSS Probability

1.55%

71.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-287

Affected Software

Vendor	Product	Versions
Ibm	Spectrum Protect Operations Center	>= 7.1.0.000, <= 7.1.11
Ibm	Spectrum Protect Operations Center	>= 8.1.0.000, <= 8.1.10

References

https://exchange.xforce.ibmcloud.com/vulnerabilities/188993VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6369101Patch, Vendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/188993VDB Entry, Vendor Advisory
https://www.ibm.com/support/pages/node/6369101Patch, Vendor Advisory

Timeline

Published: Nov 23, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-4771?

How severe is CVE-2020-4771?

CVE-2020-4771 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.55% probability of exploitation in the next 30 days.

How do I fix CVE-2020-4771?

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-2020-4771?

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

Scan your code now

Source: NVD / NIST