ByteOS Network

NVD Vulnerability Details :

CVE-2026-6676

Received

Source-security@nortonlifelock.com

Published At-12 Jun, 2026 | 23:16

Updated At-12 Jun, 2026 | 23:16

Heap buffer out-of-bounds write vulnerability in Avira Antivirus engine when scanning a malformed POSIX tar archive may allow Local Execution of Code or Denial-of-Service of the antivirus engine process. This issue affects Avira Antivirus on Windows, macOS, and Linux for engine builds before 8.3.27.12.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Metrics

Type	Version	Base score	Base severity	Vector
Secondary	3.1	7.8	HIGH	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Type: Secondary

Version: 3.1

Base score: 7.8

Base severity: HIGH

Vector:

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

Weaknesses

CWE ID	Type	Source
CWE-787	Secondary	security@nortonlifelock.com

CWE ID: CWE-787

Type: Secondary

Source: security@nortonlifelock.com

References

Hyperlink	Source	Resource
https://www.gendigital.com/us/en/contact-us/security-advisories/	security@nortonlifelock.com	N/A

Hyperlink: https://www.gendigital.com/us/en/contact-us/security-advisories/

Source: security@nortonlifelock.com

Resource: N/A

CISA Catalog

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Change History