CVE-2022-3929

Internal-message disclosure via unencrypted CORBA traffic

Published Jan 5, 2023 · Updated Apr 10, 2025

Cleartext transmission in Hitachi Energy FOXMAN-UN and UNEM R9C through R15B allows attackers to intercept internal messages. The client and server send part of their CORBA exchanges over TCP/IP without encryption, exposing those exchanges to traffic tracing. Exploitation requires access to the adjacent management network and discloses message contents; no direct data modification is established.

CVSS severity8.3
High
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cleartext transmission in Hitachi Energy FOXMAN-UN and UNEM R9C through R15B allows attackers to intercept internal messages. The client and server send part of their CORBA exchanges over TCP/IP without encryption, exposing those exchanges to traffic tracing. Exploitation requires access to the adjacent management network and discloses message contents; no direct data modification is established.

The record

CVE
CVE-2022-3929
Published
Jan 5, 2023
Updated
Apr 10, 2025
Vendor
Hitachi Energy
Product
FOXMAN-UN
Classifications
CWE-319, CAPEC-158, T1040
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 10, 2025Record 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=FOXMAN-UN R10C
  2. Affected versionversion=FOXMAN-UN R11A
  3. Affected versionversion=FOXMAN-UN R11B
  4. Affected versionversion=FOXMAN-UN R14A
  5. Affected versionversion=FOXMAN-UN R14B
  6. Affected versionversion=FOXMAN-UN R15A
  7. Affected versionversion=FOXMAN-UN R15B
  8. Affected versionversion=FOXMAN-UN R9C

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Hitachi Energy · FOXMAN-UNversion=FOXMAN-UN R10C; version=FOXMAN-UN R11A; version=FOXMAN-UN R11B; version=FOXMAN-UN R14A; version=FOXMAN-UN R14B; version=FOXMAN-UN R15A; version=FOXMAN-UN R15B; version=FOXMAN-UN R9C
Hitachi Energy · UNEMversion=UNEM R10C; version=UNEM R11A; version=UNEM R11B; version=UNEM R14A; version=UNEM R14B; version=UNEM R15A; version=UNEM R15B; version=UNEM R9C

Published CVSS scores

8.3Hitachi EnergyCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-319Cleartext Transmission of Sensitive Information
CAPEC-158Sniffing Network Traffic
T1040Network Sniffing

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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