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Defender

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high advisory

Caddy Defender Client IP Bypass Vulnerability (CVE-2026-46415)

Caddy Defender versions before v0.10.1 are vulnerable to a client IP bypass (CVE-2026-46415) when deployed behind a trusted proxy, allowing blocked clients to bypass Defender's IP-based restrictions.

caddy-defender cve defender proxy bypass ghsa
2r 1t
medium advisory

Windows Defender Throttle Rate Modification

An attacker modifies the Windows Defender ThrottleDetectionEventsRate registry setting to reduce the frequency of logged detection events, potentially evading detection.

Splunk Enterprise +2 windows defender registry defense-evasion
2r 1t
high advisory

Windows Defender Exclusion Registry Modification

Adversaries modify Windows Defender exclusion registry entries to bypass antivirus and execute malicious code undetected, potentially leading to persistence and further malicious activities.

Windows Defender +3 windows endpoint registry defender exclusion defense-evasion malware
2r 1t
high threat

Windows Defender BlockAtFirstSeen Feature Disabled via Registry Modification

An attacker modifies the Windows Registry to disable the Windows Defender BlockAtFirstSeen feature, potentially allowing malware to bypass initial detection and increasing the risk of system compromise.

exploited Windows Defender +3 registry_modification defender blockatfirstseen
2r
high advisory

Windows Defender Health Check Interval Modification

This analytic detects modifications to the Windows registry, specifically targeting the `ServiceKeepAlive` value, to impair Windows Defender's ability to perform timely health checks, potentially leading to a vulnerable system state.

Splunk Enterprise +3 windows registry defender defense-evasion threat
2r