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CashDro 3 CVE-2026-8076

| EUVDEUVD-2026-28547 CRITICAL
Use of Weak Credentials (CWE-1391)
2026-05-08 INCIBE GHSA-9x7x-hw35-pfrh
9.3
CVSS 4.0 · NVD
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Identify exposed CashDro 3 panel
  2. Delivery
    Send PIN enumeration requests
  3. Exploit
    Bypass authentication via brute force
  4. Execution
    Access admin configuration
  5. Impact
    Exfiltrate transaction data or modify cash handling settings

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A07:2025 - Authentication Failures
ASVS 5.0
V6 - Authentication Strong credential management
Exploitation Conditions

Remote unauthenticated exploitation against default configurations of CashDro 3 administration panel version 24.01.00.26. The web administration interface must be network-accessible to the attacker (CVSS AV:N) - most critical if exposed to the internet, but also exploitable from compromised internal networks in retail/banking environments. No special configuration is required as numeric PIN authentication is the standard authentication method maintained for POS compatibility since 2012. Exploitation is NOT limited by account lockout mechanisms, CAPTCHA, or rate limiting controls. The only practical limitation is network latency affecting brute-force speed and whether administrators have chosen longer PIN lengths (though even 8-digit numeric PINs contain only 100 million combinations, feasible to enumerate). Organizations that have implemented network segmentation restricting access to the administration panel to specific management VLANs face reduced but not eliminated risk if an attacker pivots through other compromised systems.

Impact

This vulnerability presents CRITICAL real-world risk despite no confirmed active exploitation (CISA KEV). The CVSS 9.3 score accurately reflects severity: network attack vector (AV:N), low complexity (AC:L), no privileges required (PR:N), and high impact to confidentiality and integrity (VC:H/VI:H). The attack is fully automatable - a simple script can enumerate numeric PINs at network speeds, limited only by HTTP response times. Cash management systems control physical currency access and transaction data, making administrative compromise high-value for financially motivated attackers. The legacy design constraint (2012 POS compatibility) suggests remediation may require architectural changes beyond a simple patch, potentially delaying full mitigation. Organizations using CashDro 3 in retail, banking, or gaming environments face immediate risk of configuration tampering, transaction manipulation, and data exfiltration. The combination of trivial exploitation, critical asset exposure, and network accessibility makes this a priority remediation target regardless of current EPSS or KEV status. Authentication bypass vulnerabilities are consistently exploited in real-world incidents, and numeric PIN systems are well-understood attack targets.

Exploit ScenarioDerived

An attacker scans the internet for exposed CashDro 3 administration panels using HTTP banner fingerprinting or Shodan searches. Upon locating a target at a retail location, the attacker develops a Python script to iterate through common 4-6 digit numeric PINs (0000-9999 for 4-digit, expanding as needed). With no account lockout, the script submits authentication attempts at 10-100 requests per second depending on network conditions. Within minutes to hours depending on PIN length, the attacker gains administrative access, allowing them to modify cash handling configurations, exfiltrate transaction history, or manipulate device settings to facilitate physical theft during next cash collection cycle.

Act Now Prioritize within 24-48h. Why: CRITICAL severity.
Patch available 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – May 08, 2026

Brute-force authentication bypass in CashDro 3 web administration panel 24.01.00.26 enables remote unauthenticated attackers to gain full administrative access. The system accepts numeric PINs without account lockout mechanisms, a legacy design from 2012 POS integrations. Successful exploitation grants access to confidential configuration settings with high impact to confidentiality and integrity (CVSS 9.3). No public exploit identified at time of analysis, though exploitation is trivial given the vulnerability class. Patch available per vendor advisory from INCIBE.

RemediationAI

Vendor-released patch available per INCIBE-CERT advisory at https://www.incibe.es/en/incibe-cert/notices/aviso/multiple-vulnerabilities-cashdro-3 - consult this resource for exact fix version and upgrade instructions. Primary mitigation: apply vendor patch immediately to affected CashDro 3 administration panels. Until patching is complete, implement network-level compensating controls: restrict web panel access to trusted IP ranges only via firewall rules (blocks remote exploitation but impacts legitimate remote administration), deploy a reverse proxy with rate limiting (10 requests/minute per source IP recommended, may cause false positives during legitimate use), and enable logging with real-time alerting on failed authentication attempts (three failures in 60 seconds should trigger investigation). Change all existing PINs to maximum supported length and document changes for POS integration teams. If POS compatibility allows, migrate to alphanumeric password authentication or certificate-based authentication. Monitor vendor communications for guidance on POS integration impacts, as authentication changes may require updates to integrated systems deployed since 2012. Do not expose the administration panel to public internet - use VPN access for remote administration with multi-factor authentication at the VPN layer.

Affected VersionsENISA

CashDro 3 Administration Panel 24.01.00.26

Affected Packages

euvd cashdro_3_administration_panel no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

CashDro 3 is a cash management system with a web-based administration panel (CPE: cpe:2.3:a:cashdro:cashdro_3_administration_panel). The vulnerability stems from CWE-1391 (Use of Weak Credentials), where the authentication mechanism accepts numeric PINs without implementing rate limiting, account lockout, or CAPTCHA protections. This design choice traces to backwards compatibility requirements with point-of-sale (POS) software integrations deployed since 2012. The CVSS 4.0 vector (AV:N/AC:L/PR:N/UI:N) indicates a remotely exploitable flaw requiring no prerequisites - attackers can directly enumerate PINs against the web interface. Numeric-only PINs drastically reduce the keyspace compared to alphanumeric passwords (10^n vs 62^n possibilities), making brute-force attacks computationally trivial even for longer PIN lengths. The absence of lockout controls means attackers can iterate through the entire PIN space without detection or interruption.

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Severity by source

NVD PRIMARY 9.3 CRITICAL
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vulnerable system: Confidentiality
High
Vulnerable system: Integrity
High
Vulnerable system: Availability
None
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

2
CVSS changed
May 08, 2026 - 12:22 NVD
9.3 (CRITICAL)
CVE Published
May 08, 2026 - 11:55 nvd
CRITICAL 9.3

DescriptionCVE.org

Weak credentials in the CashDro 3 web administration panel, version 24.01.00.26, where the platform allows the use of numeric PINs for user authentication. The system supports the use of PIN-based credentials, maintaining compatibility with POS software integrations deployed since 2012. This could allow an attacker to easily perform a brute-force attack against a user and gain access by trying different PINs without the account being locked. Successful exploitation of this vulnerability could result in unauthorized access to confidential configuration settings, compromising the security of the system.

Executive ViewAI

Why It Matters

CashDro 3 web administration panel (version 24.01.00.26) contains a critical authentication bypass vulnerability allowing unauthenticated attackers to brute-force administrative access through unprotected numeric PINs without lockout controls. Successful compromise grants full administrative access to system configuration and sensitive data, creating immediate risk to payment systems, financial data integrity, and operational continuity for all organizations using this payment processing software.

Business Impact: Severe
Compensating Controls

Apply vendor patch. Pending patching: implement network-level access controls restricting web administration panel to specific trusted IP ranges; deploy WAF rules to rate-limit authentication attempts; enforce VPN requirement for administrative access; enable comprehensive logging of all authentication attempts for forensic review.

Threat Intelligence Overview

EPSS Score
0.1%
Top 85% exploitable
Data Quality
5 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity CRITICAL
CISA KEV No
Public POC No
EPSS 0.1%
Patch available Yes
Active threat No
Deciding rule
CRITICAL severity
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision
Out-of-Cycle
Exploitation
None
System Exposure· derived
Open
Automatable
Yes
Human Impact
Very High
Technical Impact
Total

Priority Score

46
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +46
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

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