CVE-2020-11049— Out-of-bounds Read in FreeRDPrdp_read_share_control_header
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I. Basic Information for CVE-2020-11049
Vulnerability Information
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Vulnerability Title
Out-of-bounds Read in FreeRDPrdp_read_share_control_header
Source: NVD (National Vulnerability Database)
Vulnerability Description
In FreeRDP after 1.1 and before 2.0.0, there is an out-of-bound read of client memory that is then passed on to the protocol parser. This has been patched in 2.0.0.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存读
Source: NVD (National Vulnerability Database)
Vulnerability Title
FreeRDP 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
FreeRDP是FreeRDP团队的一款开源的远程桌面协议（RDP）的实现。 FreeRDP 1.1之后版本（2.0.0版本已修复）中存在缓冲区错误漏洞。远程攻击者可利用该漏洞获取敏感信息。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2020-11049
| # | POC Description | Source Link | Shenlong Link |
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Same Patch Batch · FreeRDP · 2020-05-07 · 7 CVEs total
| CVE-2020-11042 | 5.5 MEDIUM | Out-of-bounds Read in FreeRDP |
| CVE-2020-11046 | 5.5 MEDIUM | Improper Restriction of Operations within the Bounds of a Memory Buffer in FreeRDP |
| CVE-2020-11047 | 5.5 MEDIUM | Out-of-bounds Read in FreeRDP |
| CVE-2020-11044 | 2.2 LOW | Double Free in FreeRDP |
| CVE-2020-11045 | 2.2 LOW | Out-of-bounds Read in FreeRDP |
| CVE-2020-11048 | 2.2 LOW | Out-of-bounds Read in FreeRDPrdp_read_flow_control_pdu |
IV. Related Vulnerabilities
Same product: FreeRDP
- CVE-2026-40254
FreeRDP: contains_dotdot() off-by-one allows drive channel p - CVE-2026-33995
FreeRDP: Possible double free in kerberos_AcceptSecurityCont - CVE-2026-33987
FreeRDP: Persistent Cache bmpSize Desync - Heap OOB Write - CVE-2026-33986
FreeRDP: H.264 YUV Buffer Dimension Desync - Heap OOB Write - CVE-2026-33985
FreeRDP: ClearCodec Glyph Cache Count Desync - Heap OOB Read
Same vendor: FreeRDP
- CVE-2026-40254
FreeRDP: contains_dotdot() off-by-one allows drive channel p - CVE-2026-33995
FreeRDP: Possible double free in kerberos_AcceptSecurityCont - CVE-2026-33987
FreeRDP: Persistent Cache bmpSize Desync - Heap OOB Write - CVE-2026-33986
FreeRDP: H.264 YUV Buffer Dimension Desync - Heap OOB Write - CVE-2026-33985
FreeRDP: ClearCodec Glyph Cache Count Desync - Heap OOB Read
V. Comments for CVE-2020-11049
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