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CVE Vulnerability Details :
CVE-2026-27951
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-25 Feb, 2026 | 21:07
Updated At-25 Feb, 2026 | 21:43
Rejected At-
▼CVE Numbering Authority (CNA)
FreeRDP has possible Integer overflow in Stream_EnsureCapacity

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, the function `Stream_EnsureCapacity` can create an endless blocking loop. This may affect all client and server implementations using `FreeRDP`. For practical exploitation this will only work on 32bit systems where the available physical memory is `>= SIZE_MAX`. Version 3.23.0 contains a patch. No known workarounds are available.

Affected Products
Vendor
FreeRDPFreeRDP
Product
FreeRDP
Versions
Affected
  • < 3.23.0
Problem Types
TypeCWE IDDescription
CWECWE-190CWE-190: Integer Overflow or Wraparound
Type: CWE
CWE ID: CWE-190
Description: CWE-190: Integer Overflow or Wraparound
Metrics
VersionBase scoreBase severityVector
3.15.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Version: 3.1
Base score: 5.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-qcfc-ghxr-h927
x_refsource_CONFIRM
https://github.com/FreeRDP/FreeRDP/commit/118afc0b954ba9d5632b7836ad24e454555ed113
x_refsource_MISC
Hyperlink: https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-qcfc-ghxr-h927
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/FreeRDP/FreeRDP/commit/118afc0b954ba9d5632b7836ad24e454555ed113
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found