--- cve: "CVE-2023-39350" severity: "MEDIUM" cvss: 5.9 epss: "1.4%" vendor: "FreeRDP" kev: false exploited: false published: "2023-08-31 20:15:08" tags: [cve, security, medium] source: tsecurity.de CVE-Dossier exported: "2026-09-08T10:10:23+02:00" --- # CVE-2023-39350 > 5.9 MEDIUM · 🧪 PoC ## Beschreibung FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. This issue affects Clients only. Integer underflow leading to DOS (e.g. abort due to `WINPR_ASSERT` with default compilation flags). When an insufficient blockLen is provided, and proper length validation is not performed, an Integer Underflow occurs, leading to a Denial of Service (DOS) vulnerability. This issue has been addressed in versions 2.11.0 and 3.0.0-beta3. Users are advised to upgrade. There are no known workarounds for this vulnerability. ## CVSS-Vektor ``` CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H ``` | Metrik | Wert | Bewertung | |---|---|---| | AV Angriffsvektor | Netzwerk | bad | | AC Komplexität | Hoch | good | | PR Privilegien | Keine | bad | | UI Interaktion | Keine | bad | | S Scope | Unverändert | good | | C Vertraulichkeit | Keine | good | | I Integrität | Keine | good | | A Verfügbarkeit | Hoch | bad | ## Patch verfügbar (OSV) - 1384b3c33b9bd7599633cc54bf20cf20ec6be83c (Commit) - e204fc8be5a372626b13f66daf2abafe71dbc2dc (Commit) ## Referenzen - - - - - - - - --- _Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2023-39350) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_