PatchTheCVEfreertos-plus-tcp vulnerabilities and fixes
Recent CVEs affecting freertos-plus-tcp, with upgrade or downgrade steps. 5 tracked.
Also searched as: freertos plus tcp.
freertos-plus-tcp has 5 tracked vulnerabilities, 0 critical. A fixed release or vendor patch exists for 5. Most recent: 2026-04-29. Highest priority: CVE-2026-7424 (score 37/100).
- CVE-2026-7424 HIGH 8.1 UPGRADE Integer underflow in the DHCPv6 sub-option parser in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 allows an adja
- CVE-2026-7426 HIGH 8.1 UPGRADE Insufficient validation of the prefix length field in IPv6 Router Advertisement processing in FreeRTOS-Plus-TC
- CVE-2026-7425 MEDIUM 6.5 UPGRADE Insufficient option length validation in the IPv6 Router Advertisement parser in FreeRTOS-Plus-TCP before V4.2
- CVE-2026-7422 MEDIUM 6.5 UPGRADE Insufficient packet validation in FreeRTOS-Plus-TCP before V4.2.6 and V4.4.1 allows an adjacent network actor
- CVE-2026-7423 MEDIUM 5.3 UPGRADE Integer underflow in the ICMP and ICMPv6 echo reply handlers in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 all
FAQ
How do I fix freertos-plus-tcp vulnerabilities?
Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.
Is freertos-plus-tcp being exploited right now?
None of the tracked freertos-plus-tcp CVEs are on the CISA Known Exploited Vulnerabilities list at the moment. This is checked every 20 minutes.
Which freertos-plus-tcp CVE should I patch first?
CVE-2026-7424 currently ranks highest (37/100): Integer underflow in the DHCPv6 sub-option parser in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 allows an adja.