CVE-2021-3393

lowpriority · track · 17EPSS 0.012 · 68 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.19% (68th) EPSS

CVSS 3.5 · low

Is it mine?

28 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-28

An information leak was discovered in postgresql in versions before 13.2, before 12.6 and before 11.11. A user having UPDATE permission but not SELECT permission to a particular column could craft queries which, under some circumstances, might disclose values from that column in error messages. An attacker could use this flaw to obtain information stored in a column they are allowed to write but not read.

cvss

Technical severity, 0–10. One row per scoring source.

4.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.1–4.3

v2.03.5lowAV:N/AC:M/Au:S/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 6.8 · impact 2.9

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 1.4

v3.13.1lowAV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.14mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-200USCWE-209US

affected products (28)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Gentoo Linuxall versionscert_bundDEcpe:/o:gentoo:linux:-
Open Source Arch Linuxall versionscert_bundDEcpe:/o:archlinux:archlinux:-
Open Source PostgreSQL 11all versionscert_bundDEcpe:/a:postgresql:postgresql:11
Open Source PostgreSQL 12all versionscert_bundDEcpe:/a:postgresql:postgresql:12
Open Source PostgreSQL 13all versionscert_bundDEcpe:/a:postgresql:postgresql:13
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
SUSE openSUSEall versionscert_bundDEcpe:/o:suse:opensuse:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
n/a PostgreSQL≤ postgresql 13.2, postgresql 12.6, postgresql 11.11enisa_euvdEU
PostgreSQL Global Development Group PostgreSQL≤ 13.1fstec_bduRU
Postgres Professional Postgres Pro Certified≤ 11.11.1fstec_bduRU
Red Hat Inc. Red Hat Enterprise Linux≤ 8fstec_bduRU
Red Hat Inc. Red Hat Software Collectionsall versionsfstec_bduRU
АО «ИВК» Альт 8 СПall versionsfstec_bduRU
АО «НППКТ» ОСОН ОСнова Оnyx≤ 2.3fstec_bduRU
АО «НТЦ ИТ РОСА» ROSA Virtualization≤ 2.1fstec_bduRU
Сообщество свободного программного обеспечения Debian GNU/Linux≤ 10fstec_bduRU

showing 20 of 28

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-2464PostgreSQL: Mehrere SchwachstellenDeutsch2021-02-11csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in PostgreSQL ausnutzen, um Sicherheitsvorkehrungen zu umgehen oder Informationen offenzulegen.
BIT-postgresql-2021-33932024-03-06vendor · osvUS
An information leak was discovered in postgresql in versions before 13.2, before 12.6 and before 11.11. A user having UPDATE permission but not SELECT permission to a particular column could craft queries which, under some circumstances, might disclose values from that column in error messages. An attacker could use this flaw to obtain information stored in a column they are allowed to write but not read.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund osv NVD CVE.org MITRE

published 2021-04-01modified 2026-06-17

references (27)

External citations — patches, advisories, analysis.

scry

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