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CVE-2017-1000115

25
FAUCET Score

CVE-2017-1000115 describes a missing symlink check vulnerability in Mercurial versions prior to 4.3, allowing malicious repositories to modify files outside their intended scope. This high-severity vulnerability (CVSS 7.5) can be exploited remotely with low complexity, leading to high integrity impacts without requiring user interaction. Despite its severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.3CPE matchmatch criteria
cpe:2.3:a:mercurial:mercurial:*:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
7.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
4.81%
Probability of exploitation in next 30 days
EPSS Percentile
91.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0481 is in the 84th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

pippatch availablevia ghsa
Product: mercurialFixed in: 4.3.1
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 7Fixed in: mercurial-0:2.6.2-8.el7_4
View patch
redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: mercurial

Vendor Advisories (2)

pipGHSA-hvr9-wr9p-grgrhigh

Mercurial missing symlink check

May 14, 2022
redhatCVE-2017-1000115Important

Mercurial: pathaudit: path traversal via symlink

Aug 10, 2017

References

access.redhat.com / errata/RHSA-2017:2489
Third Party Advisory
security.gentoo.org / glsa/201709-18
Third Party AdvisoryVDB Entry
mercurial-scm.org / wiki/WhatsNew
Release NotesVendor Advisory
debian.org / security/2017/dsa-3963
Third Party Advisory
securityfocus.com / bid/100290
Third Party AdvisoryVDB Entry