Gen Digital AVG Antivirus Free up to 26.6 Sandbox privileges management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.4$0-$5k1.25

Summaryinfo

A vulnerability, which was classified as very critical, has been found in Gen Digital AVG Antivirus Free, AVG Internet Security, AVG Ultimate, Avast Antivirus, Avast One, Avast Premium Security, Avast Ultimate, Norton 360 Advanced, Norton 360 Deluxe, Norton 360 Standard and Norton Antivirus Plus up to 26.6. The impacted element is an unknown function of the component Sandbox. The manipulation leads to privileges management. This vulnerability is traded as CVE-2026-80302. An attack has to be approached locally. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Gen Digital AVG Antivirus Free, AVG Internet Security, AVG Ultimate, Avast Antivirus, Avast One, Avast Premium Security, Avast Ultimate, Norton 360 Advanced, Norton 360 Deluxe, Norton 360 Standard and Norton Antivirus Plus up to 26.6. It has been rated as very critical. This issue affects an unknown functionality of the component Sandbox. The manipulation with an unknown input leads to a privileges management vulnerability. Using CWE to declare the problem leads to CWE-269. The product does not properly assign, modify, track, or check privileges for an actor, creating an unintended sphere of control for that actor. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Insufficient isolation in the Avast sandbox file virtualization layer on Windows allows a local, low-privileged attacker executing inside the sandbox to write arbitrary files outside sandbox containment and execute code on the host. The sandbox virtualizes file system operations by intercepting write requests to protected system directories. However, the virtualization implementation fails to properly validate write targets in certain edge cases, allowing writes to bypass the virtualization redirection and reach the actual host file system in protected locations. An attacker can exploit this to overwrite executable files, system libraries, or startup configurations with arbitrary content, leading to code execution with host privileges on subsequent system operations or reboot.

It is possible to read the advisory at gendigital.com. The identification of this vulnerability is CVE-2026-80302 since 08/26/2026. The exploitation is known to be easy. Attacking locally is a requirement. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/06/2026). The attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

Upgrading to version 26.7 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.8
VulDB Meta Temp Score: 8.4

VulDB Base Score: 8.8
VulDB Temp Score: 8.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Privileges management
CWE: CWE-269 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: AVG Antivirus Free/AVG Internet Security/AVG Ultimate/Avast Antivirus/Avast One/Avast Premium Security/Avast Ultimate/Norton 360 Advanced/Norton 360 Deluxe/Norton 360 Standard/Norton Antivirus Plus 26.7

Timelineinfo

08/26/2026 CVE reserved
11/06/2026 +72 days Advisory disclosed
11/06/2026 +0 days VulDB entry created
11/06/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: gendigital.com
Status: Confirmed

CNA: GEN
CVE: CVE-2026-80302 (🔒)

GCVE (CVE): GCVE-0-2026-80302
GCVE (VulDB): GCVE-100-431999

Entryinfo

Created: 11/06/2026 17:35
Changes: 11/06/2026 17:35 (55)
Complete: 🔍
Cache ID: 216::103

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