CVEvulnerability
CVE-2026-109947
7.1 HIGH
Official page ↗
- Status
- Analyzed
- Published
- 2026-10-13
- Last modified
- 2026-10-21
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 7.1 HIGH — CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/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])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-770
Description
FreeRDP from 3.20.1 before 3.32.0 contains an uncontrolled resource allocation vulnerability that allows malicious RDP servers to exhaust client memory via oversized drive redirection read requests. Attackers can send IRP_MJ_READ with Length 0xffffffff, causing roughly 4 GiB of zeroed allocation on 64-bit builds or an under-reserved buffer on 32-bit builds.
Affected configurations
• freerdp freerdp (>= 3.20.1 < 3.32.0)
Related
Weakness · CWE (1)
- CWE-770 Allocation of Resources Without Limits or Throttling weakness
References
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-q56j-jjh6-38jf Exploit, Vendor Advisory
- https://www.vulncheck.com/advisories/freerdp-3.20.1-before-3.32.0-unbounded-allocation-via-drive-process-irp-read Third Party Advisory
- https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-q56j-jjh6-38jf Exploit, Vendor Advisory