CVE-2026-6474

MEDIUMNVD 4.34.3—

4.3

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.

CVSS v3: 4.3
EG Score: 4.3(high)
EPSS: 9.7%
KEV: Not listed

Published

May 14, 2026

Last Modified

May 18, 2026

Advisory Details (1)

Auto-updated May 18, 2026

No patch confirmed yet.

generic

PostgreSQL: CVE-2026-6474: PostgreSQL timeofday() can disclose portions of server memory

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

Vendor Advisories for CVE-2026-6474(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

CVE-2026-6474
Microsoft Security Response Center (MSRC)
PostgreSQL timeofday() can disclose portions of server memory

Frequently asked(5)

What is CVE-2026-6474?

CVE-2026-6474 is a medium vulnerability published on May 14, 2026. 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.

When was CVE-2026-6474 disclosed?

CVE-2026-6474 was first published in the National Vulnerability Database on May 14, 2026, with the most recent update on May 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-6474 actively exploited?

CVE-2026-6474 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 9.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-6474?

CVE-2026-6474 has a CVSS v3 base score of 4.3 (NVD).

How do I remediate CVE-2026-6474?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-6474, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-6474

Explore →

Is Your Infrastructure Affected by CVE-2026-6474?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs

CVE-2026-6474

📅 Published

🔄 Last Modified

📋 Advisory Details (1)

PostgreSQL: CVE-2026-6474: PostgreSQL timeofday() can disclose portions of server memory

📣 Vendor Advisories for CVE-2026-6474(1)

❓ Frequently asked(5)