PT-2026-28631 · Fleet · Fleet

Fuzzztf · Published 2026-03-27 · Updated 2026-03-28 · CVE-2026-34391

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Name of the Vulnerable Software and Affected Versions Fleet versions prior to 4.81.1

Description Fleet, an open source device management software, contains an issue in its Windows MDM command processing. A malicious enrolled device can access MDM commands intended for other devices. This could expose sensitive configuration data, including WiFi credentials, VPN secrets, and certificate payloads, across the entire Windows fleet.

Recommendations Update to version 4.81.1 or later.

Exploit

Fix

Weakness Enumeration

CWE-488

Related Identifiers

CVE-2026-34391

GHSA-WG7J-PCC3-H4RH

Affected Products

Fleet

References · 5

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34391.json · Exploit
• https://github.com/fleetdm/fleet/security/advisories/GHSA-wg7j-pcc3-h4rh · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2026-34391 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-34391 · Security Note
• https://twitter.com/CVEnew/status/2037719425303142797 · Twitter Post