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CVE-2023-39421

Use of Hard-coded Credentials in RDPWin.dll

HIGH
7.7
CVSS Score
Published: September 7, 2023 at 12:19 PM UTC
Updated: June 17, 2026 at 06:12 AM UTC
2 products affected across 2 vendorsInternet Reservation Module Next GenerationInternet Reservation Module Next Generation

Using IRM Next Generation by Resort Data Processing, Inc.?

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Severity
HIGH7.7
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

The RDPWin.dll component as used in the IRM Next Generation booking engine includes a set of hardcoded API keys for third-party services such as Twilio and Vonage. These keys allow unrestricted interaction with these services.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Third Party Advisory
Source: [email protected]
https://bitdefender.com/blog/labs/check-out-with-extra-charges-vulnerabilities-in-hotel-booking-engine-explained

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.7HIGHBitdefender
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-798

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