FreeRDP is a free implementation of the Remote Desktop Protocol.
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0 on 32-bit builds, FreeRDP clients contain an integer overflow in update_read_delta_points in libfreerdp/core/orders.c when multiplying an attacker-controlled point count by sizeof(DELTA_POINT), allowing a malicious RDP peer to allocate an undersized heap buffer and then write beyond it during initialization. This issue is fixed in version 3.28.0.
AI Analysis
Technical Summary
FreeRDP, a free implementation of the Remote Desktop Protocol, has an integer overflow vulnerability in the update_read_delta_points function within libfreerdp/core/orders.c on 32-bit builds prior to version 3.28.0. The vulnerability arises when multiplying an attacker-controlled point count by sizeof(DELTA_POINT), leading to an undersized heap buffer allocation and subsequent out-of-bounds write during initialization. This can be triggered by a malicious RDP peer. The vulnerability is fixed in version 3.28.0.
Potential Impact
A malicious RDP peer can exploit this integer overflow to cause a heap buffer overflow, potentially leading to memory corruption. This could affect the stability or security of the FreeRDP client during initialization. No known exploits in the wild have been reported.
Mitigation Recommendations
Upgrade FreeRDP to version 3.28.0 or later, where this vulnerability is fixed. No other mitigation is indicated.
FreeRDP is a free implementation of the Remote Desktop Protocol.
Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.28.0 on 32-bit builds, FreeRDP clients contain an integer overflow in update_read_delta_points in libfreerdp/core/orders.c when multiplying an attacker-controlled point count by sizeof(DELTA_POINT), allowing a malicious RDP peer to allocate an undersized heap buffer and then write beyond it during initialization. This issue is fixed in version 3.28.0.
CVSS v4.0
Affected software
pkg:deb/ubuntu/[email protected]~git20140921.1.440916e+dfsg1-5ubuntu1.4?arch=source&distro=xenialpkg:deb/ubuntu/[email protected]+dfsg1-0ubuntu0.18.04.4+esm6?arch=source&distro=esm-infra/bionicpkg:deb/ubuntu/[email protected]~git20140921.1.440916e+dfsg1-15ubuntu1.18.04.2?arch=source&distro=bionicpkg:deb/ubuntu/[email protected]+dfsg1-0ubuntu0.20.04.2+esm4?arch=source&distro=esm-infra/focalpkg:deb/ubuntu/[email protected]+dfsg1-3ubuntu2.11?arch=source&distro=jammypkg:deb/ubuntu/[email protected]+dfsg1-0ubuntu1.6?arch=source&distro=noblepkg:deb/ubuntu/[email protected]+dfsg1-1ubuntu0.1~esm6?arch=source&distro=esm-apps/noblepkg:deb/ubuntu/[email protected]+dfsg-2ubuntu0.5?arch=source&distro=questingpkg:deb/ubuntu/[email protected]+dfsg-1ubuntu1.1?arch=source&distro=resoluteRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
FreeRDP, a free implementation of the Remote Desktop Protocol, has an integer overflow vulnerability in the update_read_delta_points function within libfreerdp/core/orders.c on 32-bit builds prior to version 3.28.0. The vulnerability arises when multiplying an attacker-controlled point count by sizeof(DELTA_POINT), leading to an undersized heap buffer allocation and subsequent out-of-bounds write during initialization. This can be triggered by a malicious RDP peer. The vulnerability is fixed in version 3.28.0.
Potential Impact
A malicious RDP peer can exploit this integer overflow to cause a heap buffer overflow, potentially leading to memory corruption. This could affect the stability or security of the FreeRDP client during initialization. No known exploits in the wild have been reported.
Mitigation Recommendations
Upgrade FreeRDP to version 3.28.0 or later, where this vulnerability is fixed. No other mitigation is indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-57156
- Osv Schema Version
- 1.7.0
- Aliases
- []
- Ecosystems
- ["Ubuntu:16.04:LTS","Ubuntu:Pro:18.04:LTS","Ubuntu:18.04:LTS","Ubuntu:Pro:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:Pro:24.04:LTS","Ubuntu:25.10","Ubuntu:26.04:LTS"]
- Database Specific Severity
- null
- Cvss Version
- 4.0
Threat ID: 6a58b46f68715ace43d83a93
Added to database: 07/16/2026, 10:37:35 UTC
Last enriched: 07/16/2026, 11:44:32 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 8
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