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Vulnerability record · CVE-2026-26225 · published 12 February 2026

CVE-2026-26225: Link following vulnerability

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.

8.5 CVSS 4.0 High EPSS 0.16% · top 95.0% CWE-59 · Link following Deferred
8.5CVSS 4.0 base score
0.16%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
17 Jun 2026Last modified by NVD

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/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
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

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Source: NIST National Vulnerability Database (record CVE-2026-26225), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.