CVE-2025-11617
mediumpriority · track · 0EPSS 0.003 · 23 %ileEURUUSEPSS · scored 2026-10-26
A missing validation check in FreeRTOS-Plus-TCP's IPv6 packet processing code can lead to an out-of-bounds read when receiving a IPv6 packet with incorrect payload lengths in the packet header. This issue only affects applications using IPv6. We recommend users upgrade to the latest version and ensure any forked or derivative code is patched to incorporate the new fixes.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.3–5.4
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (3)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (10)
External citations — patches, advisories, analysis.
- https://aws.amazon.com/security/security-bulletins/AWS-2025-023/cnnvd
- https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.3.4cnnvd
- https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-wmjr-wm93-cvv2cnnvd
- https://www.freertos.org/Patchcnnvd
- https://aws.amazon.com/security/security-bulletins/AWS-2025-023/enisa_euvd
- https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/releases/tag/V4.3.4enisa_euvd
- https://github.com/FreeRTOS/FreeRTOS-Plus-TCP/security/advisories/GHSA-wmjr-wm93-cvv2enisa_euvd
- https://aws.amazon.com/security/security-bulletins/AWS-2025-023/Vendor Advisorynvd
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