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Vulnerability record · CVE-2016-7167 · published 7 October 2016

CVE-2016-7167: Fedoraproject fedora integer overflow vulnerability

Fedoraproject · Fedora

Multiple integer overflows in the (1) curl_escape, (2) curl_easy_escape, (3) curl_unescape, and (4) curl_easy_unescape functions in libcurl before 7.50.3 allow attackers to have unspecified impact via a string of length 0xffffffff, which triggers a heap-based buffer overflow.

9.8 CVSS 3.0 Critical EPSS 12% · top 4.1% CWE-190 · Integer overflow
9.8CVSS 3.0 base score, v2 7.5
12%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
26References
17 Jun 2026Last modified by NVD

Description

Multiple integer overflows in the (1) curl_escape, (2) curl_easy_escape, (3) curl_unescape, and (4) curl_easy_unescape functions in libcurl before 7.50.3 allow attackers to have unspecified impact via a string of length 0xffffffff, which triggers a heap-based buffer overflow.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://www.securityfocus.com/bid/92975 Broken Link
http://www.securitytracker.com/id/1036813 Third Party AdvisoryVDB Entry
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.538632 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2016
https://access.redhat.com/errata/RHSA-2018:2486
https://access.redhat.com/errata/RHSA-2018:3558
https://curl.haxx.se/docs/adv_20160914.html Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00005.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B3IU2FRXQNU6UJIQT4NGLWW
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LTH54DFOS4TSYPG5XKJDGAG
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZMRWVISG7VUCYRMF23A2UHM
https://security.gentoo.org/glsa/201701-47
http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
http://www.securityfocus.com/bid/92975 Broken Link
http://www.securitytracker.com/id/1036813 Third Party AdvisoryVDB Entry
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2016&m=slackware-security.538632 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2016
https://access.redhat.com/errata/RHSA-2018:2486
https://access.redhat.com/errata/RHSA-2018:3558
https://curl.haxx.se/docs/adv_20160914.html Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/11/msg00005.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/B3IU2FRXQNU6UJIQT4NGLWW
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LTH54DFOS4TSYPG5XKJDGAG
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZMRWVISG7VUCYRMF23A2UHM
https://security.gentoo.org/glsa/201701-47

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Source: NIST National Vulnerability Database (record CVE-2016-7167), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.