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Freertos Plus Tcp CVE-2026-7425

| EUVDEUVD-2026-26283 MEDIUM
Out-of-bounds Read (CWE-125)
2026-04-29 AMZN
Buffer Overflow Information Disclosure Denial Of Service Freertos Plus Tcp
6.0
CVSS 4.0 · NVD
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Severity by source

NVD PRIMARY
6.0 MEDIUM
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

4
CVSS changed
Apr 29, 2026 - 20:22 NVD
6.5 (MEDIUM) 6.0 (MEDIUM)
EUVD ID Assigned
Apr 29, 2026 - 19:30 euvd
EUVD-2026-26283
Patch released
Apr 29, 2026 - 19:30 nvd
Patch available
CVE Published
Apr 29, 2026 - 18:52 nvd
MEDIUM 6.0

DescriptionCVE.org

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.

Analysis

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.

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Same weakness CWE-125 – Out-of-bounds Read

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CVE-2026-7425 vulnerability details – vuln.today
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