Local Privilege Escalation Vulnerability in Intego Antivirus for Windows
CVE-2026-107707

8.5HIGH

Key Information:

Vendor

Intego

Status
Intego Antivirus
Vendor
CVE Published:
8 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-107707?

Intego Antivirus for Windows versions through 3.0.0.1 contains a vulnerability in its optimization module that permits local unprivileged users to delete arbitrary folders as the SYSTEM account. Exploitation occurs when an attacker alters the directory of a scanned duplicate file, leveraging a junction to C:\Config.msi. This allows them to exploit Windows Installer rollback mechanisms, opening the door to executing malicious code with elevated SYSTEM privileges.

Affected Version(s)

Intego Antivirus Windows 0 <= 3.0.0.1

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-107707 - Proof of Concept

References

https://blog.quarkslab.com/milking-the-last-drop-of-integ...
technical-descriptionexploit
https://www.intego.com/
product
https://www.vulncheck.com/advisories/intego-antivirus-thr...
third-party-advisory

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Lucas Laise of Quarkslab
.