CVE-2022-43494Network attack vector

Arbitrary file disclosure via FileGetNextChunk

Published Jan 17, 2023 · Updated Jan 16, 2025

Improper access control in GE Vernova Proficy Historian 7.0 through 2022 allows remote attackers to read arbitrary server files. The MSO FileGetNextChunk command accepts a client-controlled path and returns the referenced file without enforcing access control. Network reachability to an MSO service on TCP ports 13000–14000 is sufficient; the flaw discloses files readable by the SYSTEM-level service without modifying them.

CVSS severity7.5
High
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in GE Vernova Proficy Historian 7.0 through 2022 allows remote attackers to read arbitrary server files. The MSO FileGetNextChunk command accepts a client-controlled path and returns the referenced file without enforcing access control. Network reachability to an MSO service on TCP ports 13000–14000 is sufficient; the flaw discloses files readable by the SYSTEM-level service without modifying them.

The record

CVE
CVE-2022-43494
Published
Jan 17, 2023
Updated
Jan 16, 2025
Vendor
GE Vernova
Product
Proficy Historian
Classifications
CWE-284, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 17, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=7.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

GE Vernova · Proficy Historianversion=7.0

Published CVSS scores

7.5ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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