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VulnerabilityPublished Updated

CVE-2024-45523: Improper Restriction of Excessive Authentication Attempts

Source CVE Database V5

0

Not known to be exploited · CVSS 9.1 Critical · fixed in 12.7.1.38241 : patch affected systems as a priority.

Data as of 26 Oct 2026, 09:15 UTC

CVSS 3.1 base score
9.1Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 37% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 12.7.1.38241, 12.6.2.37183, 12.5.2.35950 +2
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Sep 2024

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

AI-suggested

Organizations should immediately identify all instances of Bravura Security Fabric in their environment and verify the version in use. Applying the vendor-provided patches for versions 12.3.5.32784, 12.4.3.35110, 12.5.2.35950, 12.6.2.37183, and 12.7.1.38241 or later is the most effective mitigation. Until patches can be applied, administrators should implement network-level protections such as rate limiting or blocking excessive failed login attempts to the SOAP API endpoint. Deploying Web Application Firewalls (WAFs) with rules to detect and block repeated failed authentication attempts can reduce attack surface. Monitoring authentication logs for unusual patterns of failed logins can provide early detection of exploitation attempts. Additionally, restricting access to the SOAP API to trusted IP addresses or VPNs can reduce exposure. Security teams should update incident response plans to include this vulnerability and prepare for potential DoS scenarios. Regularly reviewing and hardening authentication mechanisms and API security controls will help prevent similar issues in the future.

Description

An issue was discovered in Bravura Security Fabric versions 12.3.x before 12.3.5.32784, 12.4.x before 12.4.3.35110, 12.5.x before 12.5.2.35950, 12.6.x before 12.6.2.37183, and 12.7.x before 12.7.1.38241. An unauthenticated attacker can cause a resource leak by issuing multiple failed login attempts through API SOAP.

References

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