Norton, Avast, and AVG local privilege escalation via link following in Data Shredder

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-6064
StatePUBLISHED
AssignerGEN
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-28 11:17:26 UTC
Updated2026-10-28 11:17:26 UTC
DescriptionLink following vulnerability in Data Shredder components in Norton Antivirus, Avast Antivirus, and AVG Internet Security prior to 26.5.10933 on Windows allows a local, low-privileged attacker to escalate privileges to SYSTEM. During a privileged shred operation, enabling arbitrary file/folder deletion that is leveraged to gain NT AUTHORITY\SYSTEM privelages.

Risk And Classification

Primary CVSS: v3.1 7.3 HIGH from [email protected]

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Problem Types: CWE-59 | CWE-59 CWE-59: Improper Link Resolution Before File Access ('Link Following')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.3HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
3.1CNACVSS7.3HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Gen Digital Norton Antivirus affected 26.5 custom Windows
CNA Gen Digital Avast Antivirus affected 26.5 custom Windows
CNA Gen Digital AVG Internet Security affected 26.5 custom Windows

References

ReferenceSourceLinkTags
www.gendigital.com/us/en/contact-us/security-advisories [email protected] www.gendigital.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Anonymous working with TrendAI Zero Day Initiative (en)

Additional Advisory Data

Solutions

CNA: Customers are advised to upgrade to version >26.5 released on or after May 2026

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