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.
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Affected Vendors & Products
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History
Fri, 06 Mar 2026 19:15:00 +0000
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ssvc
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Fri, 06 Mar 2026 15:30:00 +0000
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Gen Digital
Gen Digital avira Internet Security |
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| Vendors & Products |
Gen Digital
Gen Digital avira Internet Security |
Fri, 06 Mar 2026 11:15:00 +0000
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Avira
Avira avira Internet Security Suite |
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| CPEs | cpe:2.3:a:avira:avira_internet_security_suite:*:*:*:*:*:windows:*:* | |
| Vendors & Products |
Avira
Avira avira Internet Security Suite |
Thu, 05 Mar 2026 22:30:00 +0000
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cvssV3_1
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Thu, 05 Mar 2026 14:30:00 +0000
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| Description | 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. | |
| Title | Avira Internet Security Arbitrary File Deletion via Improper Link Resolution | |
| Weaknesses | CWE-59 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: VulnCheck
Published: 2026-03-05T14:15:48.976Z
Updated: 2026-03-06T18:16:46.592Z
Reserved: 2026-02-23T21:38:48.842Z
Link: CVE-2026-27748
Updated: 2026-03-06T18:16:43.443Z
Status : Awaiting Analysis
Published: 2026-03-05T15:16:11.747
Modified: 2026-03-05T23:16:20.327
Link: CVE-2026-27748
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