Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2025-7019— Avast antivirus stack overflow when scanning a malformed Office Open XML file

Quick assessment

Affected
Gen Digital Avast Antivirus
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Gen Digital Avast Antivirus是美国Gen Digital公司的一个防病毒与网络安全软件。 Gen Digital Avast Antivirus存在缓冲区错误漏洞，该漏洞源于扫描恶意Office Open XML文件时存在栈缓冲区溢出，可能导致防病毒进程拒绝服务。

CVSS 5.5 · Medium EPSS 0.11% · P1

Affected Version Matrix 5

VendorProduct Version RangeStatus
Gen Digital Avast Antivirus < 25020100 affected
Gen Digital Avast Business Antivirus < 25020100 affected
Gen Digital Avast One < 25020100 affected
Gen Digital AVG Antivirus < 25020100 affected
Gen Digital Norton Antivirus < 25020100 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-7019

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Avast antivirus stack overflow when scanning a malformed Office Open XML file
Source: CVE Program / CVE List V5
Vulnerability Description
Stack overflow vulnerability in Avast Antivirus when scanning a malformed Office Open XML file may allow Denial-of-Service of the antivirus process. This issue affects Avast Antivirus, AVG Antivirus, Norton Antivirus, Avast One, and Avast Business Antivirus on Windows, macOS, and Linux for virus definition builds before VPS 25020100. The affected scanning logic is delivered through a shared Gen Digital virus definition update stream. The same stream feeds the consumer antivirus products listed in this advisory and other Gen Digital products that embed the same engine. Mitigation flows through this update channel; installations at or above the listed build are not vulnerable regardless of which product consumes the stream.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
Gen Digital Avast Antivirus 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Gen Digital Avast Antivirus是美国Gen Digital公司的一个防病毒与网络安全软件。 Gen Digital Avast Antivirus存在缓冲区错误漏洞，该漏洞源于扫描恶意Office Open XML文件时存在栈缓冲区溢出，可能导致防病毒进程拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Gen Digital Avast Antivirus 0 ~ 25020100 -
Gen Digital AVG Antivirus 0 ~ 25020100 -
Gen Digital Norton Antivirus 0 ~ 25020100 -
Gen Digital Avast One 0 ~ 25020100 -
Gen Digital Avast Business Antivirus 0 ~ 25020100 -

II. Public POCs for CVE-2025-7019

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-7019

请登录查看更多情报信息。

Same Patch Batch · Gen Digital · 2026-06-12 · 17 CVEs total

CVE-2026-6676 7.8 HIGH Avira antivirus engine heap buffer OOB write when scanning a malformed POSIX tar archive
CVE-2025-7003 7.8 HIGH Avira antivirus engine heap buffer OOB read when scanning a malformed PDF file (variant 1)
CVE-2025-7002 7.8 HIGH Avira antivirus engine heap buffer OOB read when scanning a malformed PDF file (variant 2)
CVE-2025-7008 7.8 HIGH Avast antivirus heap buffer OOB read when scanning a malformed PE file
CVE-2025-7009 7.8 HIGH Avast antivirus heap buffer OOB read when scanning a malformed PE file
CVE-2025-7017 7.8 HIGH Avira antivirus engine heap buffer OOB read when scanning a malformed Windows MSI file
CVE-2025-7004 7.8 HIGH Avast antivirus heap buffer OOB write when scanning a malformed PE file
CVE-2025-7011 7.8 HIGH Avast antivirus heap OOB when scanning a malformed zip file
CVE-2025-9032 7.8 HIGH Avira antivirus engine heap buffer OOB read when scanning a malformed PE file
CVE-2025-9033 7.8 HIGH Avira antivirus engine heap buffer OOB read when scanning a malformed PDF file (variant 3)
CVE-2025-14098 7.8 HIGH Avira antivirus engine heap buffer OOB write when scanning a malformed MS-DOS executable f
CVE-2026-12068 7.4 HIGH Avira Password Manager credential disclosure via cross-origin autofill in Firefox
CVE-2025-7006 5.5 MEDIUM Avast antivirus use of stack memory after free when scanning a malformed PE file
CVE-2025-7010 5.5 MEDIUM Avast antivirus stack overflow when scanning a malformed PDF file
CVE-2025-7005 5.5 MEDIUM Avast antivirus infinite recursion when scanning a malformed PE file
CVE-2025-7018 5.5 MEDIUM Avira antivirus engine null pointer dereference when scanning a malformed PE file

IV. Related Vulnerabilities

Same product: Avast Antivirus
Same vendor: Gen Digital
Same weakness: CWE-121

V. Comments for CVE-2025-7019

No comments yet

Leave a comment