CVE-2026-6474 | BDVDB-2026-333200 Detail

PostgreSQL

Description#

Externally-controlled format string in PostgreSQL timeofday() function allows an attacker to retrieve portions of server memory, via crafted timezone zones. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

Impact#

Per CVSS v3.1: confidentiality impact low, integrity impact none, availability impact none. Attack vector: network.

Weaknesses#

CWE-134 Use of Externally-Controlled Format String

References#

https://www.postgresql.org/support/security/CVE-2026-6474/

Exploit#

No public exploit known

History#

Version 12026-05-14Record published in the CVE List.

Published

Published: 2026-05-14
Last modified: 2026-05-14

Vendor information

Vendor: Not stated
Product: PostgreSQL

Score

4.3 Medium

EPSS

less than 1%, Very Low

Estimated chance of exploitation in the next 30 days. EPSS percentile: 11.8.

KEV

Not listed in the CISA Known Exploited Vulnerabilities catalog.

Impact

Format String

Action

No specific action is recorded in the source data. Check the references for vendor guidance.

Affected Systems

Vulnerable
>= 18 and < 18.4
Fixed
18.4
Vulnerable
>= 17 and < 17.10
Fixed
17.10
Vulnerable
>= 16 and < 16.14
Fixed
16.14
Vulnerable
>= 15 and < 15.18
Fixed
15.18
Vulnerable
< 14.23
Fixed
14.23

Scoring System

CVSS v4.0

Not available

CVSS v3.1

4.3 Medium

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

Metric breakdown
Attack Vector	Network
Attack Complexity	Low
Privileges Required	Low
User Interaction	None
Scope	Unchanged
Confidentiality	Low
Integrity	None
Availability	None

CVSS v3.0

Not available

CVSS v2

Not available

Source: CVE List v5 (record); CISA KEV (kev, action); FIRST EPSS (epss).