CVE-2025-64385Network attack vector

Unauthenticated configuration changes via MAC-addressed UDP frames

Published Oct 31, 2025 · Updated Oct 31, 2025

Improper input validation in CIRCUTOR TCPRS1+ 1.0.14 allows remote attackers to alter device configuration through UDP frames. The UDP configuration service treats the device MAC address as sufficient authorization and applies supplied initial-configuration values without authentication. Network access to the service and knowledge of the MAC address are sufficient to change gateway settings and interrupt communications.

CVSS severity9.2
Critical
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in CIRCUTOR TCPRS1+ 1.0.14 allows remote attackers to alter device configuration through UDP frames. The UDP configuration service treats the device MAC address as sufficient authorization and applies supplied initial-configuration values without authentication. Network access to the service and knowledge of the MAC address are sufficient to change gateway settings and interrupt communications.

The record

CVE
CVE-2025-64385
Published
Oct 31, 2025
Updated
Oct 31, 2025
Vendor
CIRCUTOR
Product
TCPRS1+
Classifications
CWE-20, CAPEC-10, CAPEC-101, T0836
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 31, 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?

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

  1. Affected versionversion=1.0.14

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

CIRCUTOR · TCPRS1+version=1.0.14

Published CVSS scores

9.2S21secCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:L/SA: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.

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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-20Improper Input Validation
CAPEC-10Buffer Overflow via Environment Variables
CAPEC-101Server Side Include Injection
T0836Modify Parameter

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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