CVE & CISA-KEV Catalog

CVE-2017-1000115

HIGHEPSS 91th pctl
7.5
CVSS v3
NVD

Description

Mercurial prior to version 4.3 is vulnerable to a missing symlink check that can malicious repositories to modify files outside the repository

How to fix

Remediation Available
mercurialDebian
Fixed in:4.3.1-1CVE-2017-1000115
Fixed in:4.3.1-1CVE-2017-1000115
Fixed in:4.3.1-1CVE-2017-1000115
Fixed in:4.3.1-1CVE-2017-1000115

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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityHigh
AvailabilityNone

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

Exploit Intelligence

4.81%probability of exploitation in 30 days
91stpercentile

High risk: more likely to be exploited than 91% of all known CVEs.

References

Related Vulnerabilities

Other CWE-59 (Link Following) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2022-30333High7.599%KEV + RansomFix
CVE-2021-21300High8.089%-Fix
CVE-2021-32610High7.173%-Fix
CVE-2020-36193High7.571%KEVFix
CVE-2023-40028Medium4.969%-Fix
CVE-2023-36874High7.843%KEVFix

Common questions

How do I fix CVE-2017-1000115?

Upgrade mercurial on debian 11 to 4.3.1-1 or later.

Is CVE-2017-1000115 being actively exploited?

Not that we know of. CVE-2017-1000115 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 4.8% is the estimated probability that it will be exploited in the next 30 days. That is higher than 91% of all scored CVEs.

How severe is CVE-2017-1000115?

CVE-2017-1000115 has a CVSS v3 base score of 7.5, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2017-1000115 affect?

Published advisories record a fix for mercurial (Debian). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-13.