CVE-2026-82712Network attack vector

Device-state changes via forged web requests

Published Sep 4, 2026 · Updated Sep 7, 2026

Cross-site request forgery in Tycon Systems TPDIN-Monitor-WEB3 2.2.9 and earlier allows remote attackers to change device state. CISA has not published the affected web endpoint or the missing request-authentication check that accepts a forged state-changing request. Exploitation requires an operator's browser to submit attacker-controlled content to the network-accessible web interface, and resulting changes can affect monitored equipment or relay-controlled power.

CVSS severity8.8
High
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in Tycon Systems TPDIN-Monitor-WEB3 2.2.9 and earlier allows remote attackers to change device state. CISA has not published the affected web endpoint or the missing request-authentication check that accepts a forged state-changing request. Exploitation requires an operator's browser to submit attacker-controlled content to the network-accessible web interface, and resulting changes can affect monitored equipment or relay-controlled power.

The record

CVE
CVE-2026-82712
Published
Sep 4, 2026
Updated
Sep 7, 2026
Vendor
Tycon Systems
Product
TPDIN-Monitor-WEB3
Classifications
CWE-352, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 7, 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 <=2.2.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Tycon Systems · TPDIN-Monitor-WEB3version=0 <=2.2.9

Published CVSS scores

8.8CISACVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.6CISACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA: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-352Cross-Site Request Forgery (CSRF)
T1204.001Malicious Link

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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