# CVE-2026-2402: CWE-307 Improper Restriction of Excessive Authentication Attempts vulnerability exists that would allow an attacker to…

Source: https://junglewise.ai/threats/cve-2026-2402-cwe-307-improper-restriction-of-excessive-authentication-attempts  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-04-14  
License: CC BY 4.0 with a link back

CVE-2026-2402 · Severity: medium · CVSS 5.3 · Published 2026-04-14

CWE-307 Improper Restriction of Excessive Authentication Attempts vulnerability exists that would allow an attacker to gain access to the user account by performing an arbitrary number of authentication attempts with different credentials on a sequence of requests to multiple endpoints.

Technologies: [Schneider Electric PowerChute Serial Shutdown](https://junglewise.ai/threats/technologies/powerchute-serial-shutdown). Vendors: [Schneider Electric](https://junglewise.ai/threats/vendors/schneider-electric).

## Quick answers

**Is CVE-2026-2402 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-2402 being exploited in the wild.

**How severe is CVE-2026-2402?** Medium severity, with a CVSS score of 5.3, published 14 April 2026.

**Which products and versions are affected?** Schneider Electric PowerChute Serial Shutdown. The advisory does not name versions.

**Is there a fix for CVE-2026-2402?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2026-2402?** Check whether you run Schneider Electric PowerChute Serial Shutdown. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Schneider Electric PowerChute Serial Shutdown

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