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CVE-2026-103264

β›” critical
Summary

Fleet versions before 4.87.0 contain an authentication bypass vulnerability in the device API that accepts hostnames and hardware serials as authentication tokens in addition to device UUIDs. Unauthenticated attackers who know or guess these non-secret identifiers can authenticate as iOS/iPadOS hosts to read device data and trigger device-scoped actions including software installation and MDM migration.

CVSS Score
9.1
Critical
EPSS Score
0.3
Exploit Probability
Published Date
2026-10-01
First Seen: 2026-10-04
πŸ“Š Relative Risk Intelligence

This CVE is High Risk - more severe than 87.6% of all 365,890 vulnerabilities in our database.

#45,274
Top 25% most severe
Severity Percentile
🎯 CISA SSVC Assessment Updated: Oct 1, 2026
πŸ” Exploitation Status
None
No known exploits
βš™οΈ Automatable
YES
Can be exploited automatically
πŸ’₯ Technical Impact
Total
Complete system compromise possible
SSVC data provided by CISA
Last Modified 2026-10-08
CVSS Vector 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CVSS Vector 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE IDs (Weakness Types)

πŸ“¦ Affected Products 1

πŸ”— References 2

πŸ”— Related CVEs 6

CVE ID Severity CVSS EPSS Summary Published
CVE-2026-103265 πŸ”Ά medium 4.3 0.2 Fleet versions before 4.89.0 fail to properly filter MDM command results by team authorization in the commands/results e... 2026-10-01
CVE-2026-101046 ℹ️ low 3.1 0.2 Fleet before 4.89.0 contains an SQL injection vulnerability in the activity list endpoints (GET /api/v1/fleet/activities... 2026-09-27
CVE-2026-101047 πŸ”Ά medium 5.3 0.2 Fleet before 4.87.0 does not protect the two endpoints that serve in-house iOS application packages and manifests (enter... 2026-09-27
CVE-2026-23998 ⚠️ high 7.5 0.0 Fleet is open source device management software. Prior to version 4.81.0, a vulnerability in Fleet’s Windows MDM manag... 2026-05-14
CVE-2026-24000 πŸ”Ά medium 5.3 0.1 Fleet is open source device management software. Prior to version 4.80.1, Fleet trusted client-supplied IP address heade... 2026-05-14
CVE-2026-24899 ⚠️ high 7.5 0.0 Fleet is open source device management software. Prior to version 4.82.0, a vulnerability in Fleet's Windows MDM enrollm... 2026-05-14
These CVEs affect the same products