CVE-2026-26225
Intego Personal Backup, a macOS backup utility that allows users to create scheduled backups and bootable system clones, contains a local privilege escalation vulnerability.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.19%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 4.0
- 8.5 HIGHCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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/M
- EPSS
- 0.19% probability · 9th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-59
- Source
- disclosure@vulncheck.com
References
- https://blog.quarkslab.com/intego_lpe_macos_1.html
- https://integosupport.zendesk.com/hc/en-us/articles/40945636077467-Personal-Backup-X9-Release-Notes
- https://www.intego.com/
- https://www.intego.com/bootable-mac-backups
- https://www.vulncheck.com/advisories/intego-personal-backup-task-file-privilege-escalation
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.