CVE-2016-3068

Mercurial before 3.7.3 allows remote attackers to execute arbitrary code via a crafted git ext:: URL when cloning a subrepository.

Published: 2016-04-13 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-3068 is rated High Risk (67.7/100): CVSS High severity, with high exploitation likelihood (EPSS 5.41%, 92th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-3068

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 5.00% 5.41% +0.40%
2 2025-09-14 5.07% 5.00% -0.06%
3 2025-08-30 — 5.07% —

Full EPSS history (14 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-3068

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2016-3068

GitHub Security Advisory for CVE-2016-3068

GHSA-j7c2-rqm3-c97m · Severity: high · Ecosystem: pip — Mercurial arbitrary code execution via a crafted git ext:: URL

OS Trackers for CVE-2016-3068

vendor priority summary link
debian not yet assigned CVE-2016-3068 not yet assigned priority: Debian including 1 source packages (mercurial), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2016-3068
gentoo normal CVE-2016-3068: 1 GLSA(s) (201612-19), 1 atom(s) (dev-vcs/mercurial); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2016-3068
redhat high — https://access.redhat.com/security/cve/CVE-2016-3068
suse medium CVE-2016-3068 severity moderate: SUSE including 18 source package names (emacs-mercurial-2.6.2-6.el7_2, emacs-mercurial-el-2.6.2-6.el7_2, …), 34 product×package rows across 29 product lines (SUSE CaaS Platform 4.0, SUSE Enterprise Storage 6, … (29 product lines)): Fixed 20, Known Not Affected 14. https://www.suse.com/security/cve/CVE-2016-3068/
ubuntu medium CVE-2016-3068 medium priority: Ubuntu including 1 source packages (mercurial), 10 status rows across 10 suites (artful, bionic, cosmic, precise, trusty, upstream, wily, xenial, yakkety, zesty): not-affected 6, ignored 2, released 2. https://ubuntu.com/security/CVE-2016-3068

Affected software / configurations for CVE-2016-3068

Vendor Product Version Raw CPE
debian debian_linux 7.0 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
mercurial mercurial <= 3.7.2 cpe:2.3:a:mercurial:mercurial:*:*:*:*:*:*:*:*
fedoraproject fedora 22 cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*
fedoraproject fedora 23 cpe:2.3:o:fedoraproject:fedora:23:*:*:*:*:*:*:*
redhat enterprise_linux_desktop 7.0 cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_hpc_node 7.0 cpe:2.3:o:redhat:enterprise_linux_hpc_node:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_hpc_node_eus 7.2 cpe:2.3:o:redhat:enterprise_linux_hpc_node_eus:7.2:*:*:*:*:*:*:*
redhat enterprise_linux_server 7.0 cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
redhat enterprise_linux_server_aus 7.2 cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:*
redhat enterprise_linux_server_eus 7.2 cpe:2.3:o:redhat:enterprise_linux_server_eus:7.2:*:*:*:*:*:*:*
redhat enterprise_linux_workstation 7.0 cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
suse linux_enterprise_debuginfo 11 cpe:2.3:a:suse:linux_enterprise_debuginfo:11:sp4:*:*:*:*:*:*
opensuse opensuse 13.2 cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:*
suse linux_enterprise_software_development_kit 11 cpe:2.3:o:suse:linux_enterprise_software_development_kit:11:sp4:*:*:*:*:*:*
suse linux_enterprise_software_development_kit 12 cpe:2.3:o:suse:linux_enterprise_software_development_kit:12:*:*:*:*:*:*:*
suse linux_enterprise_software_development_kit 12 cpe:2.3:o:suse:linux_enterprise_software_development_kit:12:sp1:*:*:*:*:*:*
opensuse leap 42.1 cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*

References for CVE-2016-3068

URL Tags
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181505.html Third Party Advisory
http://lists.fedoraproject.org/pipermail/package-announce/2016-April/181542.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00016.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00017.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00018.html Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00043.html Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0706.html Third Party Advisory
http://www.debian.org/security/2016/dsa-3542 Third Party Advisory
http://www.oracle.com/technetwork/topics/security/bulletinapr2016-2952098.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
http://www.securityfocus.com/bid/85733
https://security.gentoo.org/glsa/201612-19
https://selenic.com/repo/hg-stable/rev/34d43cb85de8 Issue Tracking Patch
https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_3.7.3_.282016-3-29.29 Vendor Advisory
cvelogic Threat Intelligence