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CVE Vulnerability Details :
CVE-2025-71326
PUBLISHED
More InfoOfficial Page
Assigner-VulnCheck
Assigner Org ID-83251b91-4cc7-4094-a5c7-464a1b83ea10
View Known Exploited Vulnerability (KEV) details
Published At-19 Jun, 2026 | 14:16
Updated At-22 Jun, 2026 | 16:42
Rejected At-
▼CVE Numbering Authority (CNA)
AVAST Antivirus 25.11 Unquoted Service Path Privilege Escalation

AVAST Antivirus 25.11 contains an unquoted service path vulnerability in the SecureLine service that allows local non-privileged users to execute code with elevated SYSTEM privileges. Attackers can exploit the unquoted binary path in the service configuration to inject malicious executables that execute with high-level system permissions.

Affected Products
Vendor
Avast
Product
AVAST Antivirus
Versions
Affected
  • 25.11
Problem Types
TypeCWE IDDescription
CWECWE-428Unquoted Search Path or Element
Type: CWE
CWE ID: CWE-428
Description: Unquoted Search Path or Element
Metrics
VersionBase scoreBase severityVector
4.08.5HIGH
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
3.17.8HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Version: 4.0
Base score: 8.5
Base severity: HIGH
Vector:
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Version: 3.1
Base score: 7.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
finder
Milad Karimi (Ex3ptionaL)
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://www.exploit-db.com/exploits/52510
exploit
https://www.avast.com/
product
https://www.vulncheck.com/advisories/avast-antivirus-unquoted-service-path-privilege-escalation
third-party-advisory
Hyperlink: https://www.exploit-db.com/exploits/52510
Resource:
exploit
Hyperlink: https://www.avast.com/
Resource:
product
Hyperlink: https://www.vulncheck.com/advisories/avast-antivirus-unquoted-service-path-privilege-escalation
Resource:
third-party-advisory
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found