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Vulnerability details: VCID-dt8u-p2t3-mbfv
Vulnerability ID VCID-dt8u-p2t3-mbfv
Aliases CVE-2016-8618
Summary The libcurl API function called `curl_maprintf()` before version 7.51.0 can be tricked into doing a double-free due to an unsafe `size_t` multiplication, on systems using 32 bit `size_t` variables.
Status Published
Exploitability 0.5
Weighted Severity 8.8
Risk 4.4
Affected and Fixed Packages Package Details
Weaknesses (2)
CWE-415 Double Free
CWE-416 Use After Free
System Score Found at
cvssv3 5.3 https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-8618.json
epss 0.01507 https://api.first.org/data/v1/epss?cve=CVE-2016-8618
epss 0.01507 https://api.first.org/data/v1/epss?cve=CVE-2016-8618
epss 0.01507 https://api.first.org/data/v1/epss?cve=CVE-2016-8618
epss 0.01507 https://api.first.org/data/v1/epss?cve=CVE-2016-8618
epss 0.01507 https://api.first.org/data/v1/epss?cve=CVE-2016-8618
epss 0.01507 https://api.first.org/data/v1/epss?cve=CVE-2016-8618
epss 0.01507 https://api.first.org/data/v1/epss?cve=CVE-2016-8618
epss 0.01507 https://api.first.org/data/v1/epss?cve=CVE-2016-8618
epss 0.01507 https://api.first.org/data/v1/epss?cve=CVE-2016-8618
epss 0.01507 https://api.first.org/data/v1/epss?cve=CVE-2016-8618
epss 0.01507 https://api.first.org/data/v1/epss?cve=CVE-2016-8618
epss 0.01507 https://api.first.org/data/v1/epss?cve=CVE-2016-8618
epss 0.01507 https://api.first.org/data/v1/epss?cve=CVE-2016-8618
epss 0.01507 https://api.first.org/data/v1/epss?cve=CVE-2016-8618
epss 0.01507 https://api.first.org/data/v1/epss?cve=CVE-2016-8618
cvssv3.1 Medium https://curl.se/docs/CVE-2016-8618.html
cvssv2 5.1 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv3 6.5 https://ftp.suse.com/pub/projects/security/yaml/suse-cvss-scores.yaml
cvssv2 7.5 https://nvd.nist.gov/vuln/detail/CVE-2016-8618
cvssv3 9.8 https://nvd.nist.gov/vuln/detail/CVE-2016-8618
archlinux High https://security.archlinux.org/AVG-61
archlinux High https://security.archlinux.org/AVG-63
archlinux High https://security.archlinux.org/AVG-66
Reference id Reference type URL
https://access.redhat.com/errata/RHSA-2018:2486
https://access.redhat.com/errata/RHSA-2018:3558
https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-8618.json
https://api.first.org/data/v1/epss?cve=CVE-2016-8618
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8618
https://curl.haxx.se/docs/adv_20161102D.html
https://curl.se/docs/CVE-2016-8618.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
https://security.gentoo.org/glsa/201701-47
https://www.tenable.com/security/tns-2016-21
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://www.securityfocus.com/bid/94098
http://www.securitytracker.com/id/1037192
1388378 https://bugzilla.redhat.com/show_bug.cgi?id=1388378
ASA-201611-10 https://security.archlinux.org/ASA-201611-10
ASA-201611-4 https://security.archlinux.org/ASA-201611-4
ASA-201611-5 https://security.archlinux.org/ASA-201611-5
AVG-61 https://security.archlinux.org/AVG-61
AVG-63 https://security.archlinux.org/AVG-63
AVG-66 https://security.archlinux.org/AVG-66
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-2016-8618 https://nvd.nist.gov/vuln/detail/CVE-2016-8618
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:N/I:L/A:N Found at https://access.redhat.com/hydra/rest/securitydata/cve/CVE-2016-8618.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:H/Au:N/C:P/I:P/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:N/I:L/A:L 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:L/Au:N/C:P/I:P/A:P Found at https://nvd.nist.gov/vuln/detail/CVE-2016-8618
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:H/I:H/A:H Found at https://nvd.nist.gov/vuln/detail/CVE-2016-8618
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 0.80405
EPSS Score 0.01507
Published At July 30, 2025, 12:55 p.m.
Date Actor Action Source VulnerableCode Version
2025-07-31T08:40:54.105634+00:00 Ubuntu USN Importer Import https://usn.ubuntu.com/3123-1/ 37.0.0