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Defender Security – Malware Scanner, Login Security & Firewall security & vulnerabilities

defender-security— active installsLast vulnerability Aug 27, 2026

No known unpatched vulnerabilities in the latest version

All 8 known vulnerabilities are fixed in the latest release. If you run an older version, update to null or newer.

8Known vulnerabilities
  • Critical0
  • High2
  • Medium6
  • Low0
Vulnerabilities per year
2021: 1 vulnerability1212022: 1 vulnerability1222023: 3 vulnerabilities3232024: 2 vulnerabilities2242026: 1 vulnerability126

All Defender Security – Malware Scanner, Login Security & Firewall vulnerabilities

Defender Security – Malware Scanner, Login Security & Firewall vulnerabilities
SeverityVulnerabilityCVEPublished
High7.2Authenticated (Administrator+) Remote Code Execution
<6.2.0Update to 6.2.0
CVE-2026-19225
Medium5.3Missing Authorization
≤4.7.2Update to 4.7.3
CVE-2024-37444
Medium6.5IP Address Spoofing
≤4.4.1Update to 4.4.2
CVE-2024-25595
Medium5.3Sensitive Information Exposure via Log File
≤4.1.0Update to 4.2.0
CVE-2023-51490
Medium5.3Masked Login Area Security Feature Bypass
≤4.2.0Update to 4.2.1
CVE-2023-47189
Medium5.3Hide Login Page Feature Protection Bypass
≤4.0.2Update to 4.1.0
CVE-2023-5089
High7.5Sensitive Information Disclosure
≤3.3.2Update to 3.3.3
CVE-2022-44581
Medium4.3Cross-Site Request Forgery Bypass
≤2.4.6Update to 2.4.6.1
CVE-2021-4425

Defender Security – Malware Scanner, Login Security & Firewall: common questions

Does Defender Security – Malware Scanner, Login Security & Firewall have known vulnerabilities?

Yes. VulnCrest Radar lists 8 known vulnerabilities in Defender Security – Malware Scanner, Login Security & Firewall: 2 high, 6 medium. None are known to affect version null.

How do I check which version of Defender Security – Malware Scanner, Login Security & Firewall I run?

In wp-admin open Plugins → Installed Plugins; the version is shown under the name. Without admin access, our passive Check my site tool can often read it from public files.

What is the most recent Defender Security – Malware Scanner, Login Security & Firewall vulnerability?

CVE-2026-19225, published Aug 27, 2026: Defender Security – Malware Scanner, Login Security & Firewall < 6.2.0 - Authenticated (Administrator+) Remote Code Execution. Severity: High (CVSS 7.2).

Is any Defender Security – Malware Scanner, Login Security & Firewall vulnerability listed in CISA KEV?

No. None of the known Defender Security – Malware Scanner, Login Security & Firewall vulnerabilities is currently listed in the CISA KEV catalog.

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