Description
Intego Personal Backup, a macOS backup utility that allows users to create scheduled backups and bootable system clones, contains a local privilege escalation vulnerability. Backup task definitions are stored in a location writable by non-privileged users while being processed with elevated privileges. By crafting a malicious serialized task file, a local attacker can trigger arbitrary file writes to sensitive system locations, leading to privilege escalation to root.
References (5)
Core 5
Core References
Various Sources technical-description
exploit
https://blog.quarkslab.com/intego_lpe_macos_1.html
Various Sources product
https://www.intego.com/
Various Sources product
https://www.intego.com/bootable-mac-backups
Various Sources release-notes
https://integosupport.zendesk.com/hc/en-us/articles/40945636077467-Personal-Backup-X9-Release-Notes
Third Party Advisory third-party-advisory
https://www.vulncheck.com/advisories/intego-personal-backup-task-file-privilege-escalation
Scores
CVSS v4
8.5
EPSS
0.0018
EPSS Percentile
7.8%
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-59
Status
published
Products (3)
Intego/Personal Backup
< 10.9.*
Intego/Personal Backup
< 10.9.0
Intego/Personal Backup
< 10.9.x
Published
Feb 12, 2026
Tracked Since
Feb 18, 2026