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Vulnerability record · CVE-2020-12254 · published 26 April 2020

CVE-2020-12254: Avira antivirus link following vulnerability

Avira · Antivirus

Avira Antivirus before 5.0.2003.1821 on Windows allows privilege escalation or a denial of service via abuse of a symlink.

7.8 CVSS 3.1 High EPSS 0.40% · top 68.9% CWE-59 · Link following
7.8CVSS 3.1 base score, v2 4.6
0.40%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Avira Antivirus before 5.0.2003.1821 on Windows allows privilege escalation or a denial of service via abuse of a symlink.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.8CVE-2016-10402Avira antivirus memory buffer overflow vulnerabilityAvira Antivirus engine versions before 8.3.36.60 allow remote code execution as NT AUTHORITY\SYSTEM via a section header with a very large relative v…EPSS 10%5.5CVE-2023-1900Avira antivirus integer overflow vulnerabilityA vulnerability within the Avira network protection feature allowed an attacker with local execution rights to cause an overflow. This could corrupt …EPSS 0.30%7.8CVE-2026-81963Windows Update Stack link-following privilege escalationWindows Update Stack resolves links improperly before accessing files, a link-following flaw (CWE-59) compounded by improper access control (CWE-284)…KEVEPSS 0.39%analysed7.8CVE-2015-5287ABRT abrt-hook-ccpp symlink privilege escalationThe abrt-hook-ccpp helper in Red Hat's Automatic Bug Reporting Tool (ABRT) before 2.7.1 follows symlinks on files with predictable names, letting a l…KEVEPSS 5.0%analysed7.8CVE-2026-41091Microsoft Defender link following allows local privilege elevationMicrosoft Defender's malware protection engine resolves links improperly before accessing files, a link-following flaw (CWE-59). A local attacker wit…KEVEPSS 0.44%analysed7.2CVE-2024-57728SimpleHelp zip slip path traversal allows arbitrary file write and code executionSimpleHelp remote support software v5.5.7 and earlier lets admin users upload a crafted zip file that writes files anywhere on the file system via zi…KEVEPSS 65%analysed7.8CVE-2025-60710Windows Task Host link following privilege escalationThe Host Process for Windows Tasks resolves links improperly before accessing files (CWE-59), letting a local attacker redirect file operations to at…KEVEPSS 4.6%analysed8.0CVE-2025-48384Git config CRLF handling allows submodule path link-following code executionGit mishandles trailing carriage returns when writing config values, so a submodule path ending in CR is read back altered during submodule initializ…KEVEPSS 4.1%analysed

Source: NIST National Vulnerability Database (record CVE-2020-12254), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.