CVE-2026-119040: high-severity vulnerability in Defender Security
Defender Security < 6.4.1 - 2FA Bypass via Unthrottled OTP Verification
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.5epss 0.2%
The Defender Security WordPress plugin before 6.4.1 does not limit the number of failed two-factor authentication attempts in its default configuration, allowing an attacker who already knows a victim's password to brute-force the one-time code and defeat the second authentication factor.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Unknown · Defender SecurityRelated CVEs — Defender Security
In the same product, most dangerous first.
CVE-2023-5089MEDIUMDefender Security < 4.1.0 - Protection Bypass (Hidden Login Page)EPSS 2.5%CVE-2026-19225MEDIUMDefender Security < 6.2.0 - Admin+ Network-Wide RCE via Hub Connector on MultisiteEPSS 0.5%CVE-2026-119039MEDIUMDefender Security 4.9.0 - 6.4.0 - Unauthenticated IP Address Spoofing via Smart IP DetectionEPSS 0.1%