CVE-2021-32027

Name: CVE-2021-32027
Creator: NVD / NIST
Published: 2021-06-01T14:15:09.993+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 2.05%

Last modified Jun 17, 2026

CVE-2021-32027 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. A flaw was found in postgresql in versions before 13.3, before 12.7, before 11.12, before 10.17 and before 9.6.22. While modifying certain SQL array values, missing bounds checks let authenticated database users write arbitrary bytes to a wide area of server memory. EPSS estimates a 2.05% chance of exploitation in the next 30 days.

Description

A flaw was found in postgresql in versions before 13.3, before 12.7, before 11.12, before 10.17 and before 9.6.22. While modifying certain SQL array values, missing bounds checks let authenticated database users write arbitrary bytes to a wide area of server memory. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

2.05%

78.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-190

Affected Software

Vendor	Product	Versions
Postgresql	Postgresql	>= 9.6.0, < 9.6.22
Postgresql	Postgresql	>= 10.0, < 10.17
Postgresql	Postgresql	>= 11.0, < 11.12
Postgresql	Postgresql	>= 12.0, < 12.7
Postgresql	Postgresql	>= 13.0, < 13.3
Redhat	Jboss Enterprise Application Platform	7.0.0
Redhat	Software Collections	All versions
Redhat	Enterprise Linux	7.0
Redhat	Enterprise Linux	8.0

References

https://bugzilla.redhat.com/show_bug.cgi?id=1956876Issue Tracking, Patch, Third Party Advisory
https://security.gentoo.org/glsa/202211-04Third Party Advisory
https://security.netapp.com/advisory/ntap-20210713-0004/Third Party Advisory
https://www.postgresql.org/support/security/CVE-2021-32027/Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1956876Issue Tracking, Patch, Third Party Advisory
https://security.gentoo.org/glsa/202211-04Third Party Advisory
https://security.netapp.com/advisory/ntap-20210713-0004/Third Party Advisory
https://www.postgresql.org/support/security/CVE-2021-32027/Vendor Advisory

Timeline

Published: Jun 1, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-32027?

How severe is CVE-2021-32027?

CVE-2021-32027 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 2.05% probability of exploitation in the next 30 days.

How do I fix CVE-2021-32027?

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-2021-32027?

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

Scan your code now

Source: NVD / NIST