CVE-2020-12000Network attack vector

Unauthenticated information disclosure via serialized message handling

Published Jun 9, 2020 · Updated Aug 4, 2024

Deserialization of untrusted data in Ignition Gateway before 7.9.14 and 8.0.10 allows remote attackers to obtain sensitive information. The Gateway's ServerMessageHeader path accepts attacker-controlled serialized data without validating it before deserialization. No authentication is required; the CNA records information exposure, while ZDI reports execution as SYSTEM, leaving the published impact assessments in conflict.

CVSS severity7.5
High
EPSS probability1.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization of untrusted data in Ignition Gateway before 7.9.14 and 8.0.10 allows remote attackers to obtain sensitive information. The Gateway's ServerMessageHeader path accepts attacker-controlled serialized data without validating it before deserialization. No authentication is required; the CNA records information exposure, while ZDI reports execution as SYSTEM, leaving the published impact assessments in conflict.

The record

CVE
CVE-2020-12000
Published
Jun 9, 2020
Updated
Aug 4, 2024
Vendor
Inductive Automation
Product
Ignition
Classifications
CWE-502, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 9, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=versions prior to 7.9.14 and 8.0.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Inductive Automation · Ignitionversion=versions prior to 7.9.14 and 8.0.10

Published CVSS scores

5.0NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
9.8Zero Day InitiativeCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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