CVEvulnerability
CVE-2026-57156
8.6 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-07-10
- Last modified
- 2026-07-15
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 8.6 HIGH — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-122, CWE-190
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.
Affected configurations
• freerdp freerdp (< 3.28.0)
Related
References
- https://github.com/FreeRDP/FreeRDP/commit/487f35daccb36a6224e530dcd8fa60850825f823 Patch
- https://github.com/FreeRDP/FreeRDP/pull/12938 Issue Tracking, Patch
- https://github.com/FreeRDP/FreeRDP/releases/tag/3.28.0 Release Notes
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-v5wf-j8j4-77h7 Exploit, Mitigation, Vendor Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-v5wf-j8j4-77h7 Exploit, Mitigation, Vendor Advisory