Vulnary
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Critical· 9.1

CVE-2026-28316

SolarWinds Serv‑U has an insecure direct object reference that lets a domain administrator gain root‑level command execution. The flaw can be exploited only by users with domain admin rights and is less severe on Windows installations.

publishedJul 21, 2026
last modifiedJul 24, 2026
sourcesNVD
severity · cvss
9.1
critical · how bad it is
exploitation · epss
1%
67th percentile · chance of exploitation in 30 days
(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →
auto-deletes from the system
counting…on Sep 4, 2026

No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.

01

Who is affected

SolarWinds Serv‑U (all versions, as no specific CPEs are listed).

02

Real-world impact

An attacker who can log in as a domain administrator could run arbitrary commands with root privileges, giving them full control over the affected system.

03

Why this severity

The CVSS score of 9.1 reflects the combination of a low attack complexity, the need for high privileges, and the complete compromise of confidentiality, integrity, and availability that the vulnerability can cause.

04

What to do about it

no official fix yet

No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.

No fix documented in sources

05

Timeline

  1. Jul 21, 2026 · 11d ago
    Published
    Disclosed and added to the National Vulnerability Database.
  2. Jul 24, 2026 · 8d ago
    Advisory updated
    The NVD record was last revised.
06

How it’s attacked

Attack vectorNetwork (remote)
Attack complexityLow
Privileges requiredHigh
User interactionNone needed
ScopeChanged
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
07

References & advisories

(ai-assisted) A model wrote this summary from the official data, so double-check it against the source before you act on it. Read the official advisory →