What’s Vulnerable › Vulnerabilities

CVE-2025-11243: Allocation of Resources Without Limits or Throttling in Shelly Pro 4PM

• Severity: high (CVSS 8.3 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-11-19 · updated 2026-10-18
• Weakness: CWE-770

Description

Allocation of Resources Without Limits or Throttling vulnerability in Shelly Pro 4PM (before v1.6) allows Excessive Allocation via network.

Affected products

• Shelly Pro 4PM: before 1.6 — fixed in 1.6

How to fix

Upgrade to a fixed version: Shelly Pro 4PM 1.6. Check the vendor advisory for mitigations.

References

• https://www.cisa.gov/news-events/ics-advisories/icsa-25-322-02
• https://www.nozominetworks.com/blog/shelly-pro-4pm-vulnerabilities
• https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2025-11243

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