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Vulnerability details: VCID-j2cq-q3r9-jfcp
Vulnerability ID VCID-j2cq-q3r9-jfcp
Aliases CVE-2016-8620
Summary Multiple vulnerabilities have been found in cURL, the worst of which could allow remote attackers to execute arbitrary code.
Status Published
Exploitability 0.5
Weighted Severity 8.0
Risk 4.0
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
CWE-122 Heap-based Buffer Overflow
System Score Found at
cvssv3 6.5 https://access.redhat.com/errata/RHSA-2018:3558
ssvc Track https://access.redhat.com/errata/RHSA-2018:3558
cvssv3 6.5 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-8620.json
epss 0.00816 https://api.first.org/data/v1/epss?cve=CVE-2016-8620
epss 0.00816 https://api.first.org/data/v1/epss?cve=CVE-2016-8620
epss 0.00816 https://api.first.org/data/v1/epss?cve=CVE-2016-8620
epss 0.00816 https://api.first.org/data/v1/epss?cve=CVE-2016-8620
epss 0.00816 https://api.first.org/data/v1/epss?cve=CVE-2016-8620
epss 0.00816 https://api.first.org/data/v1/epss?cve=CVE-2016-8620
epss 0.00816 https://api.first.org/data/v1/epss?cve=CVE-2016-8620
epss 0.00816 https://api.first.org/data/v1/epss?cve=CVE-2016-8620
epss 0.00816 https://api.first.org/data/v1/epss?cve=CVE-2016-8620
epss 0.00816 https://api.first.org/data/v1/epss?cve=CVE-2016-8620
epss 0.00816 https://api.first.org/data/v1/epss?cve=CVE-2016-8620
epss 0.00816 https://api.first.org/data/v1/epss?cve=CVE-2016-8620
epss 0.00816 https://api.first.org/data/v1/epss?cve=CVE-2016-8620
epss 0.00816 https://api.first.org/data/v1/epss?cve=CVE-2016-8620
cvssv3 6.5 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8620
ssvc Track https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8620
cvssv3 6.5 https://curl.haxx.se/docs/adv_20161102F.html
ssvc Track https://curl.haxx.se/docs/adv_20161102F.html
cvssv3.1 Medium https://curl.se/docs/CVE-2016-8620.html
cvssv2 1.9 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
archlinux High https://security.archlinux.org/AVG-60
cvssv3 6.5 https://security.gentoo.org/glsa/201701-47
ssvc Track https://security.gentoo.org/glsa/201701-47
cvssv3 6.5 https://www.tenable.com/security/tns-2016-21
ssvc Track https://www.tenable.com/security/tns-2016-21
cvssv3 6.5 http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
ssvc Track http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
cvssv3 6.5 http://www.securityfocus.com/bid/94102
ssvc Track http://www.securityfocus.com/bid/94102
cvssv3 6.5 http://www.securitytracker.com/id/1037192
ssvc Track http://www.securitytracker.com/id/1037192
Reference id Reference type URL
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-8620.json
https://api.first.org/data/v1/epss?cve=CVE-2016-8620
https://curl.se/docs/CVE-2016-8620.html
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8615
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8616
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8617
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8618
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8619
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8620
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8621
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8622
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8623
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-8624
https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
1037192 http://www.securitytracker.com/id/1037192
1388382 https://bugzilla.redhat.com/show_bug.cgi?id=1388382
94102 http://www.securityfocus.com/bid/94102
adv_20161102F.html https://curl.haxx.se/docs/adv_20161102F.html
ASA-201611-7 https://security.archlinux.org/ASA-201611-7
AVG-60 https://security.archlinux.org/AVG-60
GLSA-201701-47 https://security.gentoo.org/glsa/201701-47
show_bug.cgi?id=CVE-2016-8620 https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8620
USN-3123-1 https://usn.ubuntu.com/3123-1/
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/errata/RHSA-2018:3558
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: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-04-15T21:04:13Z/ Found at https://access.redhat.com/errata/RHSA-2018:3558
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-2016-8620.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: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8620
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: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-04-15T21:04:13Z/ Found at https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8620
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://curl.haxx.se/docs/adv_20161102F.html
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: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-04-15T21:04:13Z/ Found at https://curl.haxx.se/docs/adv_20161102F.html
Vector: AV:L/AC:M/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:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://security.gentoo.org/glsa/201701-47
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: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-04-15T21:04:13Z/ Found at https://security.gentoo.org/glsa/201701-47
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Found at https://www.tenable.com/security/tns-2016-21
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: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-04-15T21:04:13Z/ Found at https://www.tenable.com/security/tns-2016-21
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Found at http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
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: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-04-15T21:04:13Z/ Found at http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Found at http://www.securityfocus.com/bid/94102
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: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-04-15T21:04:13Z/ Found at http://www.securityfocus.com/bid/94102
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Found at http://www.securitytracker.com/id/1037192
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: SSVCv2/E:N/A:Y/T:P/P:M/B:A/M:M/D:T/2026-04-15T21:04:13Z/ Found at http://www.securitytracker.com/id/1037192
Exploit Prediction Scoring System (EPSS)
Percentile 0.74253
EPSS Score 0.00816
Published At April 1, 2026, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2026-04-01T13:00:44.672883+00:00 Gentoo Importer Import https://security.gentoo.org/glsa/201701-47 38.0.0