CVE-2023-37864Network attack vector

Full device compromise via unsigned firmware update

Published Aug 9, 2023 · Updated Oct 10, 2024

Missing firmware-update integrity checks in Phoenix Contact WP 6xxx panels before 4.0.10 allow remote authenticated users to gain full device access. The SNMPv2 firmware-update path accepts a specially crafted update request without verifying a firmware signature, allowing attacker-supplied code to be installed. SNMPv2 write privileges are required, and successful exploitation compromises control of the embedded panel.

CVSS severity7.2
High
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing firmware-update integrity checks in Phoenix Contact WP 6xxx panels before 4.0.10 allow remote authenticated users to gain full device access. The SNMPv2 firmware-update path accepts a specially crafted update request without verifying a firmware signature, allowing attacker-supplied code to be installed. SNMPv2 write privileges are required, and successful exploitation compromises control of the embedded panel.

The record

CVE
CVE-2023-37864
Published
Aug 9, 2023
Updated
Oct 10, 2024
Vendor
Phoenix Contact
Product
WP 6070-WVPS
Classifications
CWE-494, T1601.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 9, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 10, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=0 <4.0.10

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Phoenix Contact · WP 6070-WVPSversion=0 <4.0.10
Phoenix Contact · WP 6156-WHPSversion=0 <4.0.10
Phoenix Contact · WP 6101-WXPSversion=0 <4.0.10
Phoenix Contact · WP 6185-WHPSversion=0 <4.0.10
Phoenix Contact · WP 6215-WHPSversion=0 <4.0.10
Phoenix Contact · WP 6121-WXPSversion=0 <4.0.10

Published CVSS scores

7.2CERT@VDECVSS:3.1/AV:N/AC:L/PR:H/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)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-494Download of Code Without Integrity Check
T1601.001Modify System Image

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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