CVE-2026-102551criticalCWE-940

CVE-2026-102551: critical vulnerability in FreeRTOS-Plus-TCP

Improper verification of the source of a communication channel in FreeRTOS-Plus-TCP Router Advertisement handling

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28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 9.2epss 0.3%
Improper verification of the source of a communication channel in the IPv6 Router Advertisement handler in Amazon FreeRTOS-Plus-TCP before V4.4.2 might allow a remote third-party to influence an endpoint's IPv6 default gateway, on-link prefix, and address configuration via a crafted Router Advertisement. To remediate this issue, users should upgrade to version V4.4.2.
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Affected products
FreeRTOS · FreeRTOS-Plus-TCP
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CVE-2024-38373CRITICALFreeRTOS-Plus-TCP Buffer Over-Read in DNS Response ParserEPSS 0.6%CVE-2026-102552HIGHImproper verification of the source of a communication channel in FreeRTOS-Plus-TCP DNS resolverEPSS 0.2%