NULL Pointer Dereference Affecting FreeRTOS/FreeRTOS-Plus-TCP package, versions [4.0.0,4.3.4)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about NULL Pointer Dereference vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-UNMANAGED-FREERTOSFREERTOSPLUSTCP-13541943
- published14 Oct 2025
- disclosed10 Oct 2025
- creditIvan Gotovchits
Introduced: 10 Oct 2025
NewCVE-2025-11618 (opens in a new tab)How to fix?
Upgrade FreeRTOS/FreeRTOS-Plus-TCP to version 4.3.4 or higher.
Overview
Affected versions of this package are vulnerable to NULL Pointer Dereference in the UDP/IPv6 packet processing when handling packets with an incorrect IP version field. An attacker can cause a denial of service by sending specially crafted UDP/IPv6 packets.
Note:
This is only exploitable if IPv6 is enabled in the application.