Upstream information
Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.20.0, a vulnerability exists in FreeRDP's certificate handling code on Windows platforms. The function `freerdp_certificate_data_hash_ uses` the Microsoft-specific `_snprintf` function to format certificate cache filenames without guaranteeing NUL termination when truncation occurs. According to Microsoft documentation, `_snprintf` does not append a terminating NUL byte if the formatted output exceeds the destination buffer size. If an attacker controls the hostname value (for example via server redirection or a crafted .rdp file), the resulting filename buffer may not be NUL-terminated. Subsequent string operations performed on this buffer may read beyond the allocated memory region, resulting in a heap-based out-of-bounds read. In default configurations, the connection is typically terminated before sensitive data can be meaningfully exposed, but unintended memory read or a client crash may still occur under certain conditions. Version 3.20.0 has a patch for the issue.SUSE information
Overall state of this security issue: Pending
This issue is currently rated as having important severity.
| CVSS detail | SUSE |
|---|---|
| Base Score | 7.5 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | None |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality Impact | None |
| Integrity Impact | None |
| Availability Impact | High |
| CVSSv3 Version | 3.1 |
| CVSS detail | CNA (GitHub) | SUSE |
|---|---|---|
| Base Score | 6.6 | 8.7 |
| Vector | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Attack Requirements | None | None |
| Privileges Required | None | None |
| User Interaction | None | None |
| Vulnerable System Confidentiality Impact | None | None |
| Vulnerable System Integrity Impact | None | None |
| Vulnerable System Availability Impact | High | High |
| Subsequent System Confidentiality Impact | None | None |
| Subsequent System Integrity Impact | None | None |
| Subsequent System Availability Impact | None | None |
| CVSSv4 Version | 4.0 | 4.0 |
Status of this issue by product and package
Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.
| Product(s) | Source package | State |
|---|---|---|
| Products under general support and receiving all security fixes. | ||
| SUSE Linux Enterprise Desktop 15 SP6 | freerdp | Not affected |
| SUSE Linux Enterprise Desktop 15 SP7 | freerdp | Affected |
| SUSE Linux Enterprise Desktop 15 SP7 | freerdp2 | Not affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP5 | freerdp | Not affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP6 | freerdp | Not affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | freerdp | Not affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | freerdp2 | Not affected |
| SUSE Linux Enterprise Server 15 SP6 | freerdp | Not affected |
| SUSE Linux Enterprise Server 15 SP7 | freerdp | Affected |
| SUSE Linux Enterprise Server 15 SP7 | freerdp2 | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP6 | freerdp | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | freerdp | Affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP7 | freerdp2 | Not affected |
| SUSE Linux Enterprise Workstation Extension 15 SP6 | freerdp | Not affected |
| SUSE Linux Enterprise Workstation Extension 15 SP7 | freerdp | Affected |
| SUSE Linux Enterprise Workstation Extension 15 SP7 | freerdp2 | Not affected |
| openSUSE Leap 15.6 | freerdp | Not affected |
| Products under Long Term Service Pack support and receiving important and critical security fixes. | ||
| SUSE Linux Enterprise Server 12 SP5 | freerdp | Not affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS | freerdp | Not affected |
| SUSE Linux Enterprise Server 12 SP5-LTSS Extended Security | freerdp | Not affected |
| SUSE Linux Enterprise Server 15 SP4 | freerdp | Not affected |
| SUSE Linux Enterprise Server 15 SP5 | freerdp | Not affected |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | freerdp | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP5 | freerdp | Not affected |
| Products past their end of life and not receiving proactive updates anymore. | ||
| SUSE Linux Enterprise Desktop 12 SP2 | freerdp | Not affected |
| SUSE Linux Enterprise Desktop 12 SP3 | freerdp | Not affected |
| SUSE Linux Enterprise Desktop 12 SP4 | freerdp | Not affected |
| SUSE Linux Enterprise Desktop 15 SP4 | freerdp | Not affected |
| SUSE Linux Enterprise Desktop 15 SP5 | freerdp | Not affected |
| SUSE Linux Enterprise Module for Package Hub 15 SP4 | freerdp | Not affected |
| SUSE Linux Enterprise Server 12 SP2 | freerdp | Not affected |
| SUSE Linux Enterprise Server 12 SP3 | freerdp | Not affected |
| SUSE Linux Enterprise Server 12 SP4 | freerdp | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP2 | freerdp | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP3 | freerdp | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 12 SP4 | freerdp | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP4 | freerdp | Not affected |
| SUSE Linux Enterprise Server for SAP Applications 15 SP5 | freerdp | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP2 | freerdp | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP3 | freerdp | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP4 | freerdp | Not affected |
| SUSE Linux Enterprise Software Development Kit 12 SP5 | freerdp | Not affected |
| SUSE Linux Enterprise Workstation Extension 12 SP2 | freerdp | Not affected |
| SUSE Linux Enterprise Workstation Extension 12 SP3 | freerdp | Not affected |
| SUSE Linux Enterprise Workstation Extension 12 SP4 | freerdp | Not affected |
| SUSE Linux Enterprise Workstation Extension 12 SP5 | freerdp | Not affected |
| SUSE Linux Enterprise Workstation Extension 15 SP4 | freerdp | Not affected |
| SUSE Linux Enterprise Workstation Extension 15 SP5 | freerdp | Not affected |
| openSUSE Leap 15.4 | freerdp | Not affected |
| openSUSE Leap 15.5 | freerdp | Not affected |
SUSE Timeline for this CVE
CVE page created: Thu Dec 18 00:04:16 2025CVE page last modified: Thu Dec 18 16:01:14 2025