Logo
-

Byte Open Security

(ByteOS Network)

Log In

Sign Up

ByteOS

Security
Vulnerability Details
Registries
Custom Views
Weaknesses
Attack Patterns
Filters & Tools
CVE Vulnerability Details :
CVE-2026-67305
PUBLISHED
More InfoOfficial Page
Assigner-VulnCheck
Assigner Org ID-83251b91-4cc7-4094-a5c7-464a1b83ea10
View Known Exploited Vulnerability (KEV) details
Published At-01 Aug, 2026 | 12:22
Updated At-01 Aug, 2026 | 12:22
Rejected At-
▼CVE Numbering Authority (CNA)
FreeRDP Windows Client before 3.29.0 Heap Buffer Overflow via Cliprdr

FreeRDP Windows client before 3.29.0 contains a heap buffer overflow vulnerability in the clipboard virtual channel when processing CLIPRDR_FILE_CONTENTS_RESPONSE PDUs without validating the server-provided size against the destination buffer. A malicious RDP server can send a response with a data payload significantly larger than requested, causing arbitrary heap memory corruption that may enable remote code execution when a user performs a paste operation.

Affected Products
Vendor
FreeRDPFreeRDP
Product
FreeRDP
Default Status
unaffected
Versions
Affected
  • From 0 before 3.29.0 (semver)
Unaffected
  • 3.29.0 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-122Heap-based Buffer Overflow
Type: CWE
CWE ID: CWE-122
Description: Heap-based Buffer Overflow
Metrics
VersionBase scoreBase severityVector
4.09.4CRITICAL
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Version: 4.0
Base score: 9.4
Base severity: CRITICAL
Vector:
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
reporter
hyperlyz
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-cj9v-h4hq-29jr
vendor-advisory
https://www.vulncheck.com/advisories/freerdp-windows-client-before-heap-buffer-overflow-via-cliprdr
third-party-advisory
Hyperlink: https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-cj9v-h4hq-29jr
Resource:
vendor-advisory
Hyperlink: https://www.vulncheck.com/advisories/freerdp-windows-client-before-heap-buffer-overflow-via-cliprdr
Resource:
third-party-advisory
Details not found