Critical 9.8Published Nov 20, 2019

CVE-2015-3166The snprintf implementation in PostgreSQL before 9.0.20, 9.1.x before 9.1.16, 9.2.x before 9.2.11, 9.3.x before 9.3.7, and 9.4.x before 9.4.2 does not properly handle system-call errors, which allows…

Updated under an hour ago (Nov 2, 2026, 12:10 AM ET)

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No exploitation reported and no EPSS estimate yet.

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The snprintf implementation in PostgreSQL before 9.0.20, 9.1.x before 9.1.16, 9.2.x before 9.2.11, 9.3.x before 9.3.7, and 9.4.x before 9.4.2 does not properly handle system-call errors, which allows attackers to obtain sensitive information or have other unspecified impact via unknown vectors, as demonstrated by an out-of-memory error.

CVSS: 9.8 CRITICAL (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-119
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Modified
Record last updated: Jun 16, 2026
First seen by InfoSec Signals: Nov 1, 2026

Affected products

Affected products

postgresql postgresql postgresql:postgresql	before 9.0.20; from 9.1 before 9.1.16; from 9.2 before 9.2.11; from 9.3 before 9.3.7; from 9.4 before 9.4.2	NVD
debian debian_linux debian:debian_linux	7.0; 8.0; 9.0	NVD
canonical ubuntu_linux canonical:ubuntu_linux	12.04; 14.04; 14.10; 15.04	NVD

References

References

http://ubuntu.com/usn/usn-2621-1	third-party-advisory
http://www.debian.org/security/2015/dsa-3269	third-party-advisory
http://www.debian.org/security/2015/dsa-3270	third-party-advisory
http://www.postgresql.org/about/news/1587/	vendor-advisory
http://www.postgresql.org/docs/9.0/static/release-9-0-20.html	release-notes, vendor-advisory
http://www.postgresql.org/docs/9.1/static/release-9-1-16.html	release-notes, vendor-advisory
http://www.postgresql.org/docs/9.2/static/release-9-2-11.html	release-notes, vendor-advisory
http://www.postgresql.org/docs/9.3/static/release-9-3-7.html	release-notes, vendor-advisory
http://www.postgresql.org/docs/9.4/static/release-9-4-2.html	release-notes, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.