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Vulnerability details: VCID-znu7-suna-63fj
Vulnerability ID VCID-znu7-suna-63fj
Aliases CVE-2016-9594
Summary 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.
Status Published
Exploitability 0.5
Weighted Severity 7.3
Risk 3.6
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-330 Use of Insufficiently Random Values
CWE-665 Improper Initialization
System Score Found at
cvssv3 6.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-9594.json
epss 0.00953 https://api.first.org/data/v1/epss?cve=CVE-2016-9594
epss 0.00953 https://api.first.org/data/v1/epss?cve=CVE-2016-9594
epss 0.00953 https://api.first.org/data/v1/epss?cve=CVE-2016-9594
epss 0.00953 https://api.first.org/data/v1/epss?cve=CVE-2016-9594
epss 0.00953 https://api.first.org/data/v1/epss?cve=CVE-2016-9594
epss 0.00953 https://api.first.org/data/v1/epss?cve=CVE-2016-9594
epss 0.00953 https://api.first.org/data/v1/epss?cve=CVE-2016-9594
epss 0.00953 https://api.first.org/data/v1/epss?cve=CVE-2016-9594
epss 0.00953 https://api.first.org/data/v1/epss?cve=CVE-2016-9594
epss 0.00953 https://api.first.org/data/v1/epss?cve=CVE-2016-9594
epss 0.00953 https://api.first.org/data/v1/epss?cve=CVE-2016-9594
epss 0.00953 https://api.first.org/data/v1/epss?cve=CVE-2016-9594
epss 0.00953 https://api.first.org/data/v1/epss?cve=CVE-2016-9594
epss 0.00953 https://api.first.org/data/v1/epss?cve=CVE-2016-9594
epss 0.00953 https://api.first.org/data/v1/epss?cve=CVE-2016-9594
cvssv3.1 High https://curl.se/docs/CVE-2016-9594.html
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2016-9594
cvssv3 8.1 https://nvd.nist.gov/vuln/detail/CVE-2016-9594
archlinux Medium https://security.archlinux.org/AVG-112
archlinux Medium https://security.archlinux.org/AVG-113
archlinux Medium https://security.archlinux.org/AVG-114
archlinux Medium https://security.archlinux.org/AVG-115
archlinux Medium https://security.archlinux.org/AVG-116
archlinux Medium https://security.archlinux.org/AVG-117
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-9594.json
https://api.first.org/data/v1/epss?cve=CVE-2016-9594
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9594
https://curl.haxx.se/docs/adv_20161223.html
https://curl.se/docs/CVE-2016-9594.html
https://security.gentoo.org/glsa/201701-47
https://www.tenable.com/security/tns-2017-04
http://www.securityfocus.com/bid/95094
http://www.securitytracker.com/id/1037528
1408385 https://bugzilla.redhat.com/show_bug.cgi?id=1408385
ASA-201612-22 https://security.archlinux.org/ASA-201612-22
ASA-201701-10 https://security.archlinux.org/ASA-201701-10
ASA-201701-11 https://security.archlinux.org/ASA-201701-11
ASA-201701-7 https://security.archlinux.org/ASA-201701-7
ASA-201701-8 https://security.archlinux.org/ASA-201701-8
ASA-201701-9 https://security.archlinux.org/ASA-201701-9
AVG-112 https://security.archlinux.org/AVG-112
AVG-113 https://security.archlinux.org/AVG-113
AVG-114 https://security.archlinux.org/AVG-114
AVG-115 https://security.archlinux.org/AVG-115
AVG-116 https://security.archlinux.org/AVG-116
AVG-117 https://security.archlinux.org/AVG-117
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* https://nvd.nist.gov/vuln/search/results?adv_search=true&isCpeNameSearch=true&query=cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
CVE-2016-9594 https://nvd.nist.gov/vuln/detail/CVE-2016-9594
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-9594.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2016-9594
Exploitability (E) Access Vector (AV) Access Complexity (AC) Authentication (Au) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

high

functional

unproven

proof_of_concept

not_defined

local

adjacent_network

network

high

medium

low

multiple

single

none

none

partial

complete

none

partial

complete

none

partial

complete
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2016-9594
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none
Exploit Prediction Scoring System (EPSS)
Percentile 0.75458
EPSS Score 0.00953
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:30:40.533775+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.11/main.json 37.0.0