CVE-2016-9594

At a glance

Severity: MEDIUM 6.5
EPSS: EPSS 2.22 % · percentile 83 (2026-10-27)
State: PUBLISHED
Published: 2018-04-23
Updated: 2026-04-15
Assigner: redhat
NVD status: Modified

Description

curl before version 7.52.1 is vulnerable to an uninitialized random in libcurl's internal function that returns a good 32bit random value. Having a weak or virtually non-existent random value makes the operations that use it vulnerable.

Scores

Version	Score	Vector	Scored by
CVSS 3.0	MEDIUM 6.5	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N	redhat
CVSS 3.0	MEDIUM 6.5	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N	NVD · secalert@redhat.com (Secondary)
CVSS 3.0	HIGH 8.1	CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H	NVD · nvd@nist.gov (Primary)
CVSS 2.0	MEDIUM 6.8	AV:N/AC:M/Au:N/C:P/I:P/A:P	NVD · nvd@nist.gov (Primary)

Weaknesses (CWE)

CWE-665

European references

ENISA EUVD · EUVD-2016-10398
GCVE · GCVE-0-2016-9594

CERT-FR advisories

CERTFR-2017-AVI-229 — Multiples vulnérabilités dans les produits Apple · cert.ssi.gouv.fr

Affected configurations (NVD CPE)

cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* < 7.52.1

Affected products

Product	Versions
unspecified · curl	affected curl 7.52.1

References

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)	Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD