Vulnerability · Published Jan 15, 2026 · Assigned by VulnCheck
CVE-2021-47771RDP Manager 4.9.9.3 - Denial-of-Service (PoC)
Medium 5.5
In plain English
A medium-severity resource allocation without limits in RDP Manager from Cinspiration. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 16% of all known vulnerabilities).
Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 83.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
RDP Manager 4.9.9.3 contains a denial of service vulnerability in connection input fields that allows local attackers to crash the application. Attackers can add oversized entries in Verbindungsname and Server fields to permanently freeze and crash the software, potentially requiring full reinstallation.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Cinspiration | RDP Manager | 4.9.9.3 |
Weakness: CWE-770 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
- ExploitDB-50484 exploit
- Archived Software Download Page product
- Vulnerability-Lab Disclosure technical-description, exploit