Is CVE-2026-27806 actively exploited?

No active exploitation of CVE-2026-27806 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-27806 be exploited remotely?

No. CVE-2026-27806 requires local access to exploit.

What is the CVSS score of CVE-2026-27806?

CVE-2026-27806 has a CVSS score of 7.8 (HIGH).

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HIGH

CVE-2026-27806

CWE-78Published: April 8, 2026· Updated: Apr 14, 2026

7.8

CVSS v3.1

EPSS:0.01%probability of exploitation in 30 daysPercentile:1.8th

Official Description

Fleet is open source device management software. Prior to 4.81.1, the Orbit agent's FileVault disk encryption key rotation flow on collects a local user's password via a GUI dialog and interpolates it directly into a Tcl/expect script executed via exec.Command("expect", "-c", script). Because the password is inserted into Tcl brace-quoted send {%s}, a password containing } terminates the literal and injects arbitrary Tcl commands. Since Orbit runs as root, this allows a local unprivileged user to escalate to root privileges. This vulnerability is fixed in 4.81.1.

NVD Source

Technical Analysis

CVE-2026-27806 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.8.