THREATPORT/VULNERABILITY/CVE-2017-9462
HIGH SEVERITY

CVE-2017-9462

Mercurial vulnerability

CVSS
8.8
EPSS
21.5%
EPSS pct
97th
Exploited
No known
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.
Affected vendor
Mercurial
Affected product
Mercurial
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-732 — Incorrect Permission Assignment for Critical Resource
Published
2017-06-06

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring low privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 21.5% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2017-9462

  • Confirm whether Mercurial Mercurial is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2017-9462.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-9462

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