6.5
Medium
CVE-2026-7425 Insufficient option length validation in the IPv6 Router Advertisement parser in FreeRTOS-Plus-TCP before V4.2.6 and…
Description
Insufficient option length validation in the IPv6 Router Advertisement parser in FreeRTOS-Plus-TCP before V4.2.6 and V4.4.1 allows an adjacent network actor to cause a denial of service (device crash) by sending a crafted Router Advertisement with a truncated PREFIX_INFORMATION option that is smaller than the expected structure size. To mitigate this issue, users should upgrade to the fixed version when available.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| FreeRTOS-Plus-TCP 4.4 | earliest → < 4.4.1 | 4.4.1 |
| FreeRTOS-Plus-TCP 4.3 | 4.3.0 → < 4.4.1 | 4.4.1 |
| FreeRTOS-Plus-TCP 4.2 | earliest → < 4.2.6 | 4.2.6 |
| FreeRTOS-Plus-TCP 4.0 | 4.0.0 → < 4.2.6 | 4.2.6 |
References
- github.com github.com
- github.com github.com
- aws.amazon.com aws.amazon.com
- github.com github.com
Timeline
- Published
- 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-2026-7424
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
CVE-2026-7422
Insufficient packet validation in FreeRTOS-Plus-TCP before V4.2.6 and V4.4.1 allows an adjacent network actor to…
6.5
Medium