CVE-2017-20166

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.28% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 68.0% of scored records. A rank, not a probability.

NVD base score

9.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2023-01-10 00:00Z3 YR AGO

Last updated

2025-04-09 17:30Z1 YR AGO

Reserved

2023-01-10

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Critical (CVSS 9.8)

CNA CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses

• CWE-754Improper Check for Unusual or Exceptional ConditionsClass

Data version

5.1

Document digest

b85b59db961a0686fb1e453c617959dd0a218ed27114c267832d03e223125446

• github.comhttps://github.com/advisories/GHSA-2xxx-fhc8-9qvq
• github.comhttps://github.com/elixir-ecto/ecto/pull/2125
• github.comhttps://github.com/elixir-ecto/ecto/commit/db55b0cba6525c24ebddc88ef9ae0c1c00620250
• groups.google.comhttps://groups.google.com/forum/#%21topic/elixir-ecto/0m4NPfg_MMU