CVE-2016-3105

The convert extension in Mercurial before 3.8 might allow context-dependent attackers to execute arbitrary code via a crafted git repository name.

Published: 2016-05-09 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-3105 is rated Moderate Risk (63/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.17%). Review affected assets and schedule 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-2016-3105

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 2025-08-30 0.63% 1.17% +0.54%
2 2025-03-30 1.37% 0.63% -0.74%
3 2025-03-29 — 1.37% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-3105

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-2016-3105

GitHub Security Advisory for CVE-2016-3105

GHSA-49cw-434h-qc57 · Severity: high · Ecosystem: pip — Mercurial vulnerable to arbitrary code execution when converting Git repos

OS Trackers for CVE-2016-3105

vendor priority summary link
debian not yet assigned CVE-2016-3105 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-2016-3105
gentoo normal CVE-2016-3105: 1 GLSA(s) (201612-19), 1 atom(s) (dev-vcs/mercurial); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2016-3105
redhat medium — https://access.redhat.com/security/cve/CVE-2016-3105
suse medium CVE-2016-3105 severity moderate: SUSE including 13 source package names (mercurial, mercurial-2.3.2-0.14.2, …), 30 product×package rows across 28 product lines (SUSE CaaS Platform 4.0, SUSE Enterprise Storage 6, … (28 product lines)): Fixed 16, Known Not Affected 14. https://www.suse.com/security/cve/CVE-2016-3105/
ubuntu medium CVE-2016-3105 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 5, released 3, ignored 2. https://ubuntu.com/security/CVE-2016-3105

Affected software / configurations for CVE-2016-3105

Vendor Product Version Raw CPE
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
mercurial mercurial <= 3.7.3 cpe:2.3:a:mercurial:mercurial:*:*:*:*:*:*:*:*

References for CVE-2016-3105

cvelogic Threat Intelligence