CVE-2026-22905Network attack vector

Authentication bypass via URI path traversal

Published Feb 9, 2026 · Updated Feb 9, 2026

Path traversal in the web interface of WAGO 852-1322 and 852-1328 through 2.64 allows remote attackers to bypass authentication. URI validation accepts dot-dot segments such as /js/../cgi-bin/post.cgi, causing an apparently public path to resolve to protected CGI handlers. No credentials or user interaction are required, and successful requests expose protected endpoints and configuration downloads without granting write access.

CVSS severity7.5
High
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in the web interface of WAGO 852-1322 and 852-1328 through 2.64 allows remote attackers to bypass authentication. URI validation accepts dot-dot segments such as /js/../cgi-bin/post.cgi, causing an apparently public path to resolve to protected CGI handlers. No credentials or user interaction are required, and successful requests expose protected endpoints and configuration downloads without granting write access.

The record

CVE
CVE-2026-22905
Published
Feb 9, 2026
Updated
Feb 9, 2026
Vendor
WAGO
Product
Industrial Managed Switch 852-1322
Classifications
CWE-22, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 9, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 9, 2026Record 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=0.0.0 <=2.64
  2. Affected versionversion=2.64

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WAGO · Industrial Managed Switch 852-1322version=0.0.0 <=2.64; version=2.64
WAGO · Industrial Managed Switch 852-1328version=0.0.0 <=2.64; version=2.64

Published CVSS scores

7.5CERT@VDECVSS: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-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
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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