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Vulnerability details: VCID-d5k5-2r4p-tqat
Vulnerability ID VCID-d5k5-2r4p-tqat
Aliases CVE-2016-9586
Summary curl before version 7.52.0 is vulnerable to a buffer overflow when doing a large floating point output in libcurl's implementation of the printf() functions. If there are any application that accepts a format string from the outside without necessary input filtering, it could allow remote attacks.
Status Published
Exploitability 0.5
Weighted Severity 7.3
Risk 3.6
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-121 Stack-based Buffer Overflow
CWE-122 Heap-based Buffer Overflow
System Score Found at
cvssv3 5.9 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-9586.json
epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2016-9586
epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2016-9586
epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2016-9586
epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2016-9586
epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2016-9586
epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2016-9586
epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2016-9586
epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2016-9586
epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2016-9586
epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2016-9586
epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2016-9586
epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2016-9586
epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2016-9586
epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2016-9586
epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2016-9586
epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2016-9586
epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2016-9586
epss 0.00687 https://api.first.org/data/v1/epss?cve=CVE-2016-9586
cvssv3.1 Medium https://curl.se/docs/CVE-2016-9586.html
cvssv2 1.2 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3.1 5.9 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 6.8 https://nvd.nist.gov/vuln/detail/CVE-2016-9586
cvssv3 8.1 https://nvd.nist.gov/vuln/detail/CVE-2016-9586
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/errata/RHSA-2018:3558
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-9586.json
https://api.first.org/data/v1/epss?cve=CVE-2016-9586
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-9586
https://curl.haxx.se/docs/adv_20161221A.html
https://curl.se/docs/CVE-2016-9586.html
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-9586
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
https://github.com/curl/curl/commit/curl-7_51_0-162-g3ab3c16
https://lists.debian.org/debian-lts-announce/2018/11/msg00005.html
https://security.gentoo.org/glsa/201701-47
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://www.securityfocus.com/bid/95019
http://www.securitytracker.com/id/1037515
1406712 https://bugzilla.redhat.com/show_bug.cgi?id=1406712
848958 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=848958
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-2016-9586 https://nvd.nist.gov/vuln/detail/CVE-2016-9586
USN-3441-1 https://usn.ubuntu.com/3441-1/
USN-3441-2 https://usn.ubuntu.com/3441-2/
No exploits are available.
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-9586.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:L/AC:H/Au:N/C:N/I:N/A:P Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
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:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H Found at https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
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-2016-9586
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-2016-9586
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 0.70811
EPSS Score 0.00687
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:35:36.842062+00:00 Alpine Linux Importer Import https://secdb.alpinelinux.org/v3.3/main.json 37.0.0