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CVE-2026-28316— SolarWinds Serv-U Insecure Direct Object Reference (IDOR) Vulnerability

Quick assessment

Affected
SolarWinds Serv-U
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.

SolarWinds serv-u是美国SolarWinds公司的一款文件传输服务器。 SolarWinds Serv-U 15.5.4 HF1及之前版本存在授权问题漏洞，该漏洞源于不安全的直接对象引用（IDOR），可能导致拥有管理员访问权限的域账户将权限提升至系统管理员并能够以root用户执行命令。

CVSS 4.7 · Medium EPSS 2.13% · P81

Affected Version Matrix 1

VendorProduct Version RangeStatus
SolarWinds Serv-U 15.5.4 HF1 and below affected
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I. Basic Information for CVE-2026-28316

Vulnerability Information
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Vulnerability Title
SolarWinds Serv-U Insecure Direct Object Reference (IDOR) Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
SolarWinds Serv-U is affected by an insecure direct object reference (IDOR) vulnerability that can lead to privilege escalation to a system administrator with the ability to execute commands as the root user. This issue requires a domain account with administrator access. The impact is lower in Windows deployments.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5
Vulnerability Title
SolarWinds Serv-U 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SolarWinds serv-u是美国SolarWinds公司的一款文件传输服务器。 SolarWinds Serv-U 15.5.4 HF1及之前版本存在授权问题漏洞，该漏洞源于不安全的直接对象引用（IDOR），可能导致拥有管理员访问权限的域账户将权限提升至系统管理员并能够以root用户执行命令。
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
SolarWinds Serv-U 15.5.4 HF1 and below -

II. Public POCs for CVE-2026-28316

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III. Intelligence Information for CVE-2026-28316

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Vendor Advisories for CVE-2026-28316 (1)

Vendor Pages for CVE-2026-28316 (1)

Same Patch Batch · SolarWinds · 2026-07-21 · 15 CVEs total

CVE-2026-28315 6.2 MEDIUM SolarWinds Serv-U Authenticated Stored Cross-site Scripting (XSS) Vulnerability
CVE-2026-28307 4.7 MEDIUM SolarWinds Serv-U Privilege Escalation Vulnerability
CVE-2026-28317 4.7 MEDIUM SolarWinds Serv-U Insecure Direct Object Reference (IDOR) Vulnerability
CVE-2026-28309 4.7 MEDIUM SolarWinds Serv-U Broken Access Control Vulnerability
CVE-2026-28310 4.7 MEDIUM SolarWinds Serv-U Privilege Escalation Vulnerability
CVE-2026-28321 4.7 MEDIUM SolarWinds Serv-U Broken Access Control Vulnerability
CVE-2026-28308 4.7 MEDIUM SolarWinds Serv-U Insecure Direct Object Reference (IDOR) Vulnerability
CVE-2026-28313 4.7 MEDIUM SolarWinds Serv-U Insecure Direct Object Reference (IDOR) Vulnerability
CVE-2026-28306 4.7 MEDIUM SolarWinds Serv-U Privilege Escalation Vulnerability
CVE-2026-28304 4.7 MEDIUM SolarWinds Serv-U Remote Code Execution Vulnerability
CVE-2026-28302 4.7 MEDIUM SolarWinds Serv-U Insecure Direct Object Reference (IDOR) Vulnerability
CVE-2026-28305 4.7 MEDIUM SolarWinds Serv-U Insecure Direct Object Reference (IDOR) Vulnerability
CVE-2026-28314 4.7 MEDIUM SolarWinds Serv-U Insecure Direct Object Reference (IDOR) Vulnerability
CVE-2026-28312 4.7 MEDIUM SolarWinds Serv-U Privilege Escalation Vulnerability

IV. Related Vulnerabilities

Same product: Serv-U
Same vendor: SolarWinds
Same weakness: CWE-639

V. Comments for CVE-2026-28316

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