CVE-2020-15303

Name: CVE-2020-15303
Creator: NVD / NIST
Published: 2021-06-28T13:15:12.123+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.86%

Last modified Jun 17, 2026

CVE-2020-15303 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Infoblox NIOS before 8.5.2 allows entity expansion during an XML upload operation, a related issue to CVE-2003-1564.. EPSS estimates a 0.86% chance of exploitation in the next 30 days.

Description

Infoblox NIOS before 8.5.2 allows entity expansion during an XML upload operation, a related issue to CVE-2003-1564.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.86%

53.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-776

Affected Software

Vendor	Product	Versions
Infoblox	Nios	>= 8.4.0, <= 8.4.8
Infoblox	Nios	8.5.0
Infoblox	Nios	8.5.1

References

https://community.infoblox.com/t5/Security/NIOS-XML-Vulnerability/m-p/22437#M1995Vendor Advisory
https://www.infoblox.com/products/nios8/Product, Vendor Advisory
https://community.infoblox.com/t5/Security/NIOS-XML-Vulnerability/m-p/22437#M1995Vendor Advisory
https://www.infoblox.com/products/nios8/Product, Vendor Advisory

Timeline

Published: Jun 28, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-15303?

Infoblox NIOS before 8.5.2 allows entity expansion during an XML upload operation, a related issue to CVE-2003-1564.

How severe is CVE-2020-15303?

CVE-2020-15303 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.86% probability of exploitation in the next 30 days.

How do I fix CVE-2020-15303?

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-2020-15303?

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

Scan your code now

Source: NVD / NIST