CVE-2026-9773VulnerabilityPublished 24 Jun 2026

ZDI-26-386: Unraid Web Server ToggleState Command Injection Remote Code Execution Vulnerability

Source Zero Day Initiative

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Not known to be exploited · fixed in 7.3.0 : patch affected systems soon.

Data as of 5 Nov 2026, 23:24 UTC

Severity

High

Rated High by Zero Day Initiative · No CVSS score from NVD or the CNA

EPSS: 1.8% chance of exploitation in 30 days – higher than 79% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 7.3.0

Exploitation evidence

Disclosed: evidence found.
Public on cve.org; its publication date is not in this record
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 6 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

AI-suggested

Apply the official patch by upgrading Unraid to version 7.3.0 or later, where this vulnerability has been fixed. Since authentication is required to exploit this issue, ensure that access to the Unraid web interface is properly restricted and monitored. Patch status is confirmed by the vendor advisory.

Description

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Unraid. Authentication is required to exploit this vulnerability. The ZDI has assigned a CVSS rating of 8.8. The following CVEs are assigned: CVE-2026-9773.

Impact

Successful exploitation allows an authenticated remote attacker to execute arbitrary code on the affected Unraid system with www-data user privileges. This can lead to full compromise of the affected system, including confidentiality, integrity, and availability impacts as indicated by the CVSS vector (C:H/I:H/A:H).

Summary

CVE-2026-9773 is a command injection vulnerability in the ToggleState.php script of the Unraid Web Server. The vulnerability arises from insufficient validation of a user-supplied string used in a system call, enabling authenticated remote attackers to execute arbitrary code with the privileges of the www-data user. The vulnerability has a CVSS score of 8.8, indicating high severity. It affects Unraid versions before 7.3.0 and was reported to the vendor on 2026-04-22. The vendor released a fix in version 7.3.0. No known exploits have been observed in the wild at the time of disclosure.

References

zerodayinitiative.com/advisories/ZDI-26-386/ (opens in a new tab)

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