CVE-2018-25134Public exploitNetwork attack vector

Admin account creation via unauthenticated CGI request

Published Dec 24, 2025 · Updated Dec 24, 2025

Authentication bypass in Synaccess netBooter NP-02x/NP-08x allows remote attackers to create administrator accounts via HTTP. The webNewAcct.cgi handler accepts attacker-supplied account credentials from a crafted POST request without performing the required control check. No prior account or user interaction is required on versions 5.53BC, 6.10, 6.4A, 6.4BC, 6.5C, and 6.8C; the new administrator can switch managed power outlets off.

CVSS severity9.3
Critical
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Authentication bypass in Synaccess netBooter NP-02x/NP-08x allows remote attackers to create administrator accounts via HTTP. The webNewAcct.cgi handler accepts attacker-supplied account credentials from a crafted POST request without performing the required control check. No prior account or user interaction is required on versions 5.53BC, 6.10, 6.4A, 6.4BC, 6.5C, and 6.8C; the new administrator can switch managed power outlets off.

The record

CVE
CVE-2018-25134
Published
Dec 24, 2025
Updated
Dec 24, 2025
Vendor
Synaccess Networks Inc.
Product
netBooter NP-02x/NP-08x
Classifications
CWE-306, T1136.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 24, 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=5.53BC
  2. Affected versionversion=6.10
  3. Affected versionversion=6.4A
  4. Affected versionversion=6.4BC
  5. Affected versionversion=6.5C
  6. Affected versionversion=6.8C

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Synaccess Networks Inc. · netBooter NP-02x/NP-08xversion=5.53BC; version=6.10; version=6.4A; version=6.4BC; version=6.5C; version=6.8C

Published CVSS scores

9.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1136.001Create Account: Local Account

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo