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CVE-2015-3166

27
FAUCET Score

CVE-2015-3166 is a critical vulnerability in PostgreSQL's snprintf implementation across multiple versions (before 9.0.20, 9.1.16, 9.2.11, 9.3.7, and 9.4.2), affecting various Canonical and Debian Linux distributions. It stems from improper handling of system-call errors, potentially leading to sensitive information disclosure or other unspecified impacts, as demonstrated by out-of-memory errors. With a CVSS score of 9.8 (CRITICAL), this vulnerability is easily exploitable over the network with low attack complexity, posing a high risk to confidentiality, integrity, and availability. Despite its severity, there is currently no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 9.0.20CPE matchmatch criteria
cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*
>= 9.1, < 9.1.16CPE matchmatch criteria
cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*
>= 9.2, < 9.2.11CPE matchmatch criteria
cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*
>= 9.3, < 9.3.7CPE matchmatch criteria
cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*
>= 9.4, < 9.4.2CPE matchmatch criteria
cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
4.61%
Probability of exploitation in next 30 days
EPSS Percentile
90.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0461 is in the 84th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (17)

redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUSFixed in: postgresql92-postgresql-0:9.2.13-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7.1 EUSFixed in: rh-postgresql94-postgresql-0:9.4.4-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: postgresql-0:8.4.20-3.el6_6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: postgresql-0:9.2.13-1.el7_1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: postgresql92-postgresql-0:9.2.13-1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6Fixed in: rh-postgresql94-postgresql-0:9.4.4-1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUSFixed in: postgresql92-postgresql-0:9.2.13-1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.5 EUSFixed in: rh-postgresql94-postgresql-0:9.4.4-1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUSFixed in: postgresql92-postgresql-0:9.2.13-1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 6.6 EUSFixed in: rh-postgresql94-postgresql-0:9.4.4-1.el6
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: postgresql92-postgresql-0:9.2.13-1.el7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Software Collections for Red Hat Enterprise Linux 7Fixed in: rh-postgresql94-postgresql-0:9.4.4-1.el7
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: postgresql
redhatno patchvia redhat_api
Product: Red Hat Satellite 5.7Fixed in: postgresql92
redhatno patchvia redhat_api
Product: CloudForms Management Engine 5Fixed in: postgresql
redhatno patchvia redhat_api
Product: CloudForms Management Engine 5Fixed in: postgresql92-postgresql
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: postgresql84

Vendor Advisories (1)

redhatCVE-2015-3166Low

postgresql: unanticipated errors from the standard library

May 22, 2015

References

ubuntu.com / usn/usn-2621-1
Third Party Advisory
debian.org / security/2015/dsa-3269
Third Party Advisory
debian.org / security/2015/dsa-3270
Third Party Advisory
postgresql.org / about/news/1587
Vendor Advisory
postgresql.org / docs/9.0/static/release-9-0-20.html
Release NotesVendor Advisory
postgresql.org / docs/9.1/static/release-9-1-16.html
Release NotesVendor Advisory
postgresql.org / docs/9.2/static/release-9-2-11.html
Release NotesVendor Advisory
postgresql.org / docs/9.3/static/release-9-3-7.html
Release NotesVendor Advisory
postgresql.org / docs/9.4/static/release-9-4-2.html
Release NotesVendor Advisory