CVE-2026-4312Network attack vector

Unauthenticated administrator creation via exposed APIs

Published Mar 17, 2026 · Updated Mar 17, 2026

Missing authentication in DrangSoft GCB/FCB Audit Software before 20260108 allows remote attackers to create administrative accounts via APIs. The affected account-creation APIs perform the privileged operation without first authenticating the requester; exact endpoints are undisclosed. Network access alone is sufficient, and a resulting account grants administrative control over the application.

CVSS severity9.3
Critical
EPSS probability0.45%
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

Missing authentication in DrangSoft GCB/FCB Audit Software before 20260108 allows remote attackers to create administrative accounts via APIs. The affected account-creation APIs perform the privileged operation without first authenticating the requester; exact endpoints are undisclosed. Network access alone is sufficient, and a resulting account grants administrative control over the application.

The record

CVE
CVE-2026-4312
Published
Mar 17, 2026
Updated
Mar 17, 2026
Vendor
DrangSoft
Product
GCB/FCB Audit Software
Classifications
CWE-306, T1136.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 17, 2026Record 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=0 <20260108

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

DrangSoft · GCB/FCB Audit Softwareversion=0 <20260108

Published CVSS scores

9.3TWCERT/CCCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8TWCERT/CCCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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

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

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