CVE-2026-26225Public exploit

Root escalation via writable serialized backup tasks

Published Feb 12, 2026 · Updated Feb 12, 2026

Local privilege escalation in Intego Personal Backup 10.9.x and earlier allows local users to gain root via a crafted backup task. Personal Backup accepts an NSKeyedArchiver task plist from a user-writable directory and performs its selected backup operation with elevated privileges. A local user can direct the operation to overwrite /etc/pam.d/su and use the modified PAM policy to obtain root.

CVSS severity8.5
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local privilege escalation in Intego Personal Backup 10.9.x and earlier allows local users to gain root via a crafted backup task. Personal Backup accepts an NSKeyedArchiver task plist from a user-writable directory and performs its selected backup operation with elevated privileges. A local user can direct the operation to overwrite /etc/pam.d/su and use the modified PAM policy to obtain root.

The record

CVE
CVE-2026-26225
Published
Feb 12, 2026
Updated
Feb 12, 2026
Vendor
Intego
Product
Personal Backup
Classifications
CWE-59, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 12, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 12, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=10.9.x

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Intego · Personal Backupversion=0 <=10.9.x

Published CVSS scores

8.5VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-59Improper Link Resolution Before File Access ('Link Following')
T1068Exploitation for Privilege Escalation

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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