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5.3 Medium

CVE-2025-11618 A missing validation check in FreeRTOS-Plus-TCP's UDP/IPv6 packet processing code can lead to an invalid pointer…

Description

A missing validation check in FreeRTOS-Plus-TCP's UDP/IPv6 packet processing code can lead to an invalid pointer dereference when receiving a UDP/IPv6 packet with an incorrect IP version field in the packet header. This issue only affects applications using IPv6. We recommend upgrading to the latest version and ensure any forked or derivative code is patched to incorporate the new fixes.

Affected products and versions

Product Affected versions Fixed in
FreeRTOS-Plus-TCP 4.0 4.0.0 → < 4.3.4 4.3.4

References

Timeline

  1. Published
  2. Last modified

Other CVEs of FreeRTOS-Plus-TCP

The 7 CVEs of FreeRTOS-Plus-TCP →
CVE-2026-7426 Insufficient validation of the prefix length field in IPv6 Router Advertisement processing in FreeRTOS-Plus-TCP before… 8.1 High CVE-2026-7425 Insufficient option length validation in the IPv6 Router Advertisement parser in FreeRTOS-Plus-TCP before V4.2.6 and… 6.5 Medium CVE-2026-7424 Integer underflow in the DHCPv6 sub-option parser in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 allows an adjacent… 8.1 High CVE-2026-7423 Integer underflow in the ICMP and ICMPv6 echo reply handlers in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 allows an… 5.3 Medium
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