Home/CVE/Externally-controlled format string in PostgreSQL timeofday() function allows an attacker to retrieve portions of server
CVE

CVE-2026-6474

Externally-controlled format string in PostgreSQL timeofday() function allows an attacker to retrieve portions of server

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.

MEDIUM · CVSS 4.3 EPSS 0.00032
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-134Use of Externally-Controlled Format String
▤

Affected Products & Versions

5
postgresql< 14.23
postgresql>= 15.0 and < 15.18
postgresql>= 16.0 and < 16.14
postgresql>= 17.0 and < 17.10
postgresql>= 18.0 and < 18.4
▣

Scoring & Timeline

4.3
MEDIUM · CVSS v3.1 · f86ef6dc-4d3a-42ad-8f28-e6d5547a5007
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD14 May 2026 · 02:16 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

16
usnUSN-8294-1
suse-csafSUSE-SU-2026:1999-1
suse-csafSUSE-SU-2026:2000-1
suse-csafSUSE-SU-2026:2001-1
suse-csafSUSE-SU-2026:2007-1
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.postgresql.org/support/security/CVE-2026-6474/PatchVendor Advisory
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