CVE-2022-23493— Out of Bound Read in xrdp
Quick assessment
Affected
neutrinolabs xrdp
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
xrdp是Neutrinolabs实验室的一款开源远程桌面协议服务器。 xrdp v0.9.21之前版本存在缓冲区错误漏洞，该漏洞源于在xrdp_mm_trans_process_drdynvc_channel_close()函数中包含越界读取。
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2022-23493
Vulnerability Information
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Vulnerability Title
Out of Bound Read in xrdp
Source: CVE Program / CVE List V5
Vulnerability Description
xrdp is an open source project which provides a graphical login to remote machines using Microsoft Remote Desktop Protocol (RDP).
xrdp < v0.9.21 contain a Out of Bound Read in xrdp_mm_trans_process_drdynvc_channel_close() function. There are no known workarounds for this issue. Users are advised to upgrade.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Vulnerability Title
xrdp 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
xrdp是Neutrinolabs实验室的一款开源远程桌面协议服务器。 xrdp v0.9.21之前版本存在缓冲区错误漏洞，该漏洞源于在xrdp_mm_trans_process_drdynvc_channel_close()函数中包含越界读取。
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
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| neutrinolabs | xrdp | < 0.9.21 | - |
|
II. Public POCs for CVE-2022-23493
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2022-23493 (2)
-
https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-59wp-3wq6-jh5v x_refsource_CONFIRM
Same Patch Batch · neutrinolabs · 2022-12-09 · 10 CVEs total
| CVE-2022-23477 | 9.1 CRITICAL | Buffer Overflow in xrdp |
| CVE-2022-23478 | 9.1 CRITICAL | Out of Bound Write in xrdp |
| CVE-2022-23479 | 9.1 CRITICAL | Buffer Overflow occurs in xrdp |
| CVE-2022-23480 | 9.1 CRITICAL | Buffer Overflow in xrdp |
| CVE-2022-23484 | 8.2 HIGH | Integer Overflow in xrdp |
| CVE-2022-23483 | 7.5 HIGH | Out-of-Bound Read in libxrdp |
| CVE-2022-23468 | 6.5 MEDIUM | Buffer Overflow in xrdp |
| CVE-2022-23481 | Out-of-Bound Read in xrdp | |
| CVE-2022-23482 | Out-of-Bound Read in xrdp |
IV. Related Vulnerabilities
Same product: xrdp
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CVE-2026-55639
xrdp: Out-of-bounds read in GCC Conference Create Request CS -
CVE-2026-55626
xrdp: No authentication required with Xvnc backend on RHEL 9 -
CVE-2026-55238
xrdp: Malformed Confirm Active capability sets cause out-of- -
CVE-2026-54538
xrdp: Pre-auth infinite loop via totalLength=0 in TS_SHARECO -
CVE-2026-44978
xrdp: Unchecked FIPS padding length in standard RDP Security
Same vendor: neutrinolabs
-
CVE-2026-55639
xrdp: Out-of-bounds read in GCC Conference Create Request CS -
CVE-2026-55626
xrdp: No authentication required with Xvnc backend on RHEL 9 -
CVE-2026-55238
xrdp: Malformed Confirm Active capability sets cause out-of- -
CVE-2026-54538
xrdp: Pre-auth infinite loop via totalLength=0 in TS_SHARECO -
CVE-2026-44978
xrdp: Unchecked FIPS padding length in standard RDP Security
Same weakness: CWE-125
-
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Antiword through 0.37 Heap Out-of-Bounds Read via vGet8LstIn -
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CVE-2026-49868
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CVE-2026-68906
libIEC61850: Infinite loop and out-of-bounds read in ACSE pa -
CVE-2026-68907
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V. Comments for CVE-2022-23493
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