CVE-2026-6851

Published Jul 14, 2026

Last updated 10 days ago

CVSS high 7.0

Overview

Description
An Improper link resolution before file access ('link following') vulnerability in the File Shredder module as used in Bitdefender Total Security and Internet Security on Windows allows a less-privileged local user to elevate rights by leveraging a race conditions via Symbolic Links. This issue affects Total Security: before 27.0.58.315; Internet Security: before 27.0.58.315.
Source
cve-requests@bitdefender.com
NVD status
Analyzed
Products
internet_security, total_security

Risk scores

CVSS 4.0

Type
Secondary
Base score
7
Impact score
-
Exploitability score
-
Vector string
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Severity
HIGH

CVSS 3.1

Type
Primary
Base score
7
Impact score
5.9
Exploitability score
1
Vector string
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Severity
HIGH

Weaknesses

cve-requests@bitdefender.com
CWE-59

Social media

Hype score
Not currently trending

  1. 🚨*CVE* CVE-2026-6851 An Improper link resolution before file access ('link following') vulnerability in the File Shredder module as used in Bitdefender Total Security and Internet Security … https://t.co/Qy3gwxDjcJ ----- Traducción: CVE-2026-6851 Una… https://t.co/utmtNg

    @infoflowcloud

    14 Jul 2026

    28 Impressions

    0 Retweets

    0 Likes

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    0 Replies

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Configurations

Related CVEs

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  2. Avira Internet Security contains a deserialization of untrusted data vulnerability in the System Speedup component. The Avira.SystemSpeedup.RealTimeOptimizer.exe process, which runs with SYSTEM privileges, deserializes data from a file located in C:\\ProgramData using .NET BinaryFormatter without implementing input validation or deserialization safeguards. Because the file can be created or modified by a local user in default configurations, an attacker can supply a crafted serialized payload that is deserialized by the privileged process, resulting in arbitrary code execution as SYSTEM.•CVE-2026-27749
  3. Avira Internet Security contains an improper link resolution vulnerability in the Software Updater component. During the update process, a privileged service running as SYSTEM deletes a file under C:\\ProgramData without validating whether the path resolves through a symbolic link or reparse point. A local attacker can create a malicious link to redirect the delete operation to an arbitrary file, resulting in deletion of attacker-chosen files with SYSTEM privileges. This may lead to local privilege escalation, denial of service, or system integrity compromise depending on the targeted file and operating system configuration.•CVE-2026-27748
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  5. Zillya Total Security 3.0.2367.0 contains a privilege escalation vulnerability that allows low-privileged users to copy files to unauthorized system locations using the quarantine module. Attackers can leverage symbolic link techniques to restore quarantined files to restricted directories, potentially enabling system-level access through techniques like DLL hijacking.•CVE-2023-53973

References

Sources include official advisories and independent security research.