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Avast Antivirus — Vulnerabilities & Security Advisories 14

All 14 CVE vulnerabilities found in Avast Antivirus, with AI-generated Chinese analysis, references, and POCs.

This page aggregates known vulnerability records for the Avast Antivirus product, categorized by the Common Weakness Enumeration (CWE) classification system. It compiles a comprehensive list of security flaws identified within this specific antivirus software solution, covering vulnerability disclosures and advisories released over the past decade to ensure historical coverage and current relevance. Users can utilize this resource to track vendor security advisories as they are published, gain a deeper understanding of specific weakness classes such as buffer overflows or injection flaws within the context of endpoint protection software, and lookup the complete vulnerability history of Avast Antivirus to assess long-term security trends and patching responsiveness. The data is structured to facilitate research, threat modeling, and compliance auditing by providing clear references to the affected software versions and the nature of each identified flaw without requiring manual cross-referencing across multiple external sources. This centralized view helps security professionals evaluate the product's risk profile and make informed decisions regarding deployment, mitigation, or replacement strategies based on empirical evidence of past security incidents. All entries are sourced from official vendor announcements, reliable threat intelligence feeds, and public vulnerability databases to maintain accuracy and trustworthiness for enterprise security teams and independent researchers alike.

Vendor: AVAST

CVE ID Title CVSS Severity Published
CVE-2025-71326 AVAST Antivirus 25.11 Unquoted Service Path Privilege Escalation CWE-428 7.8 High 2026-06-19
CVE-2025-7019 Avast antivirus stack overflow when scanning a malformed Office Open XML file CWE-121 5.5 Medium 2026-06-12
CVE-2025-7011 Avast antivirus heap OOB when scanning a malformed zip file CWE-125 7.8 High 2026-06-12
CVE-2025-7010 Avast antivirus stack overflow when scanning a malformed PDF file CWE-674 5.5 Medium 2026-06-12
CVE-2025-7009 Avast antivirus heap buffer OOB read when scanning a malformed PE file CWE-125 7.8 High 2026-06-12
CVE-2025-7008 Avast antivirus heap buffer OOB read when scanning a malformed PE file CWE-125 7.8 High 2026-06-12
CVE-2025-7006 Avast antivirus use of stack memory after free when scanning a malformed PE file CWE-590 5.5 Medium 2026-06-12
CVE-2025-7005 Avast antivirus infinite recursion when scanning a malformed PE file CWE-674 5.5 Medium 2026-06-12
CVE-2025-7004 Avast antivirus heap buffer OOB write when scanning a malformed PE file CWE-787 7.8 High 2026-06-12
CVE-2025-10101 Avast antivirus heap buffer OOB read when scanning a malformed Mach-O file CWE-125 7.8 High 2025-12-01
CVE-2023-1587 AVG Technologies AVG Antivirus 代码问题漏洞 CWE-476 5.8 Medium 2023-04-19
CVE-2023-1586 AVG Technologies AVG Antivirus 安全漏洞 CWE-367 6.5 Medium 2023-04-19
CVE-2023-1585 AVG Technologies AVG Antivirus 安全漏洞 CWE-367 6.5 Medium 2023-04-19
CVE-2022-4291 Aswjsflt.dll in Avast Antivirus windows caused a crash of the Mozilla Firefox browser due to heap corruption CWE-119 7.7 High 2022-12-07

All 14 known CVE vulnerabilities affecting Avast Antivirus with full Chinese analysis, references, and POCs where available.