CVE-2023-39423
CWE-89Published: September 7, 2023· Updated: Jun 17, 2026
Official Description
The RDPData.dll file exposes the /irmdata/api/common endpoint that handles session IDs, among other features. By using a UNION SQL operator, an attacker can leak the sessions table, obtain the currently valid sessions and impersonate a currently logged-in user.
Risk Analysis
The Internet Reservation Module (IRM) contains a SQL injection vulnerability that allows attackers to leak session data and impersonate logged-in users. This critical flaw enables unauthorized access to sensitive user sessions.
No public exploit is known, and the vulnerability is not in CISA KEV. It is remotely exploitable with low attack complexity.
Ensure the IRM software is updated to the latest version to mitigate this SQL injection risk.
Technical Analysis
CVE-2023-39423 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 9.1.
From a weakness classification perspective (CWE-89): SQL injection vulnerabilities allow attackers to manipulate database queries, potentially exposing or modifying sensitive data.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (CWE-89)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-39423 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts