Vulnerability · Published Feb 12, 2026 · Assigned by VulnCheck

CVE-2026-26225Intego Personal Backup Task File Privilege Escalation

High 8.5

In plain English

A high-severity security flaw in Personal Backup from Intego. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities).

Severity (CVSS 4.0)8.5High

Exploit odds (30 days)0.2%top 90.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Intego	Personal Backup	0 – through 10.9.0

Weakness: CWE-59 · Vector: 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

References

https://blog.quarkslab.com/intego_lpe_macos_1.html technical-description, exploit
https://www.intego.com/ product
https://www.intego.com/bootable-mac-backups product
https://integosupport.zendesk.com/hc/en-us/articles/40945636077467-Personal-Backup-X9-Release-Notes release-notes
https://www.vulncheck.com/advisories/intego-personal-backup-task-file-privilege-escalation third-party-advisory