CVE-2026-1731— BeyondTrust Remote Support和BeyondTrust Privileged Remote Access 安全漏洞
一分钟漏洞结论
影响对象
BeyondTrust Remote Support(RS) & Privileged Remote Access(PRA)
利用判断
已确认在野利用，应立即处置
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
BeyondTrust Remote Support和BeyondTrust Privileged Remote Access（BeyondTrust PRA）都是美国BeyondTrust公司的产品。BeyondTrust Remote Support是一个适用于 Windows、Mac、Linux、Ios（iPad、iPhone）等的远程桌面访问、服务台和协作软件。BeyondTrust Privileged Remote Access是一款特权远程访问软件。 BeyondTrust Remote S
公开利用映射 1
Metasploit · 1
beyondtrust_pra_rs_command_injection.rb [exploit]
已观察到在野利用
cisa_kev · confirmed
可能的 ATT&CK 技术 1 AI
T1190 · Exploit Public-Facing Application
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一、 漏洞 CVE-2026-1731 基础信息
漏洞信息
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Vulnerability Title
Remote code execution vulnerability in BeyondTrust Remote Support (RS) and Privileged Remote Access (PRA)
来源: CVE Program / CVE List V5
Vulnerability Description
BeyondTrust Remote Support (RS) and certain older versions of Privileged Remote Access (PRA) contain a critical pre-authentication remote code execution vulnerability. By sending specially crafted requests, an unauthenticated remote attacker may be able to execute operating system commands in the context of the site user.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:H/SA:L
来源: CVE Program / CVE List V5
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
来源: CVE Program / CVE List V5
Vulnerability Title
BeyondTrust Remote Support和BeyondTrust Privileged Remote Access 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
BeyondTrust Remote Support和BeyondTrust Privileged Remote Access（BeyondTrust PRA）都是美国BeyondTrust公司的产品。BeyondTrust Remote Support是一个适用于 Windows、Mac、Linux、Ios（iPad、iPhone）等的远程桌面访问、服务台和协作软件。BeyondTrust Privileged Remote Access是一款特权远程访问软件。 BeyondTrust Remote S
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| BeyondTrust | Remote Support(RS) & Privileged Remote Access(PRA) | 0 ~ RS 25.3.1 | - |
|
二、漏洞 CVE-2026-1731 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|---|---|---|
| 1 | BeyondTrust Remote Support is vulnerable to unauthenticated remote code execution via the WebSocket endpoint /nw. An attacker can extract the company identifier from the /get_mech_list endpoint and use it to connect to the WebSocket service, then inject OS commands through the binary WebSocket payload that are executed on the server. | https://github.com/projectdiscovery/nuclei-templates/blob/main/javascript/cves/2026/CVE-2026-1731.yaml | POC详情 |
| 2 | CVE-2026-1731 - Critical command injection vulnerability in BeyondTrust Remote Support and Privileged Remote Access due to unsafe Bash arithmetic evaluation in a WebSocket-reachable script | https://github.com/win3zz/CVE-2026-1731 | POC详情 |
| 3 | Passive vulnerability scanner for CVE-2026-1731 — BeyondTrust RS/PRA pre-auth RCE (CVSS 9.9). Educational & defensive use only. | https://github.com/cybrdude/cve-2026-1731-scanner | POC详情 |
| 4 | CVE-2026-1731 PoC | https://github.com/jakubie07/CVE-2026-1731 | POC详情 |
| 5 | None | https://github.com/richardpaimu34/CVE-2026-1731 | POC详情 |
| 6 | CVE-2026-1731 — BeyondTrust Remote Code Execution Vulnerability | https://github.com/hexissam/CVE-2026-1731 | POC详情 |
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IV. Related Vulnerabilities
Same vendor: BeyondTrust
V. Comments for CVE-2026-1731
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