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CVE-2017-9462

In Mercurial before 4.1.3, "hg serve --stdio" allows remote authenticated users to launch the Python debugger, and consequently execute arbitrary code, by using --debugger as a repository name.

Published: Jun 6, 2017Updated: May 13, 2026 Sources: CVE List NVD GHSA BDUCWE-732
8.8HIGH
NVD MITRE
EPSS Score
21.5%
Top 2.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

Mercurial has Incorrect Permission Assignment for Critical Resource

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-732

Affected Products

PyPI
package-ecosystem
mercurial
OSS Libraries
mercurial
oss-projectaka hg, scm, mercurial scm
mercurialOn-prem
DevTools & CI / source-control
debian
oss-project·GBaka debian gnu/linux
debian linuxOn-premOS
Operating Systems / linux-distro
redhat
commercial·USaka red hat
enterprise linux workstationOn-premOS
Operating Systems / linux-distro
Matt Mackall
individual-devaka mercurial
MercurialOn-prem
DevTools & CI / source-control
and 6 more affected products View all →

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Privilege Escalation
View detailed technique mapping

References

https://nvd.nist.gov/vuln/detail/CVE-2017-9462
nvd.nist.gov
https://access.redhat.com/errata/RHSA-2017:1576
access.redhat.com
https://bugs.debian.org/861243
bugs.debian.org
and 11 more references View all →
News mentions
Could not load news mentions.

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