CVE-2021-32028

23

FAUCET Score

CVE-2021-32028 describes a medium-severity information disclosure vulnerability in PostgreSQL. An authenticated database user could exploit a flaw in the INSERT ... ON CONFLICT ... DO UPDATE command to read arbitrary server memory. This vulnerability primarily impacts data confidentiality. While no public exploits or active exploitation have been observed, and community discussion is minimal, the potential for unauthorized memory access warrants attention.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		>= 9.6.0, < 9.6.22CPE matchmatch criteria	cpe:2.3:a:postgresql:postgresql::::::::
		>= 10.0, < 10.17CPE matchmatch criteria	cpe:2.3:a:postgresql:postgresql::::::::
		>= 11.0, < 11.12CPE matchmatch criteria	cpe:2.3:a:postgresql:postgresql::::::::
		>= 12.0, < 12.7CPE matchmatch criteria	cpe:2.3:a:postgresql:postgresql::::::::
		>= 13.0, < 13.3CPE matchmatch criteria	cpe:2.3:a:postgresql:postgresql::::::::

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

Exploitability Score

2.8

Impact Score

3.6

CvssVersion

3.1

Exploit Intelligence

EPSS Score

1.45%

Probability of exploitation in next 30 days

EPSS Percentile

70.6%

Percentile rank of EPSS score among Peer Group

As of 2026-07-28

Model: v2026.06.15

This CVE's current EPSS score of 0.0145 is in the 84th percentile among its peer group of 21,977 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (18)

redhatpatch availablevia nvd_reference

redhatpatch availablevia redhat_api

Product: Red Hat Ansible Tower 3.8 for RHEL 7Fixed in: ansible-tower-38/ansible-tower-rhel7:3.8.4-1

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8Fixed in: postgresql:9.6-8040020210602182503.522a0ee4

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8Fixed in: postgresql:10-8040020210602185500.522a0ee4

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8Fixed in: postgresql:12-8040020210604112312.522a0ee4

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8Fixed in: postgresql:13-8040020210602192705.522a0ee4

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.1 Extended Update SupportFixed in: postgresql:10-8010020210602183449.c27ad7f8

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.1 Extended Update SupportFixed in: postgresql:9.6-8010020210602124713.c27ad7f8

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.2 Extended Update SupportFixed in: postgresql:12-8020020210602190140.4cda2c84

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.2 Extended Update SupportFixed in: postgresql:10-8020020210602183649.4cda2c84

redhatpatch availablevia redhat_api

Product: Red Hat Enterprise Linux 8.2 Extended Update SupportFixed in: postgresql:9.6-8020020210602142035.4cda2c84

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-postgresql12-postgresql-0:12.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-postgresql10-postgresql-0:10.17-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-postgresql13-postgresql-0:13.3-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUSFixed in: rh-postgresql12-postgresql-0:12.7-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUSFixed in: rh-postgresql10-postgresql-0:10.17-1.el7

redhatpatch availablevia redhat_api

Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.7 EUSFixed in: rh-postgresql13-postgresql-0:13.3-1.el7

redhatend of lifevia redhat_api

Product: Red Hat JBoss Enterprise Application Platform 7Fixed in: postgresql

Vendor Advisories (1)

redhatCVE-2021-32028Moderate

postgresql: Memory disclosure in INSERT ... ON CONFLICT ... DO UPDATE

References

bugzilla.redhat.com / show_bug.cgi

Issue TrackingPatchThird Party Advisory

security.gentoo.org / glsa/202211-04

Third Party Advisory

security.netapp.com / advisory/ntap-20211112-0003

Third Party Advisory

postgresql.org / support/security/CVE-2021-32028

Vendor Advisory