Amazon AWS FreeRTOS-Plus-TCP up to 4.3.3 IPv6 Packet Processor buffer over-read

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Amazon AWS FreeRTOS-Plus-TCP up to 4.3.3. This affects an unknown function of the component IPv6 Packet Processor. This manipulation causes buffer over-read. This vulnerability appears as CVE-2025-11617. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Amazon AWS FreeRTOS-Plus-TCP up to 4.3.3 and classified as critical. Affected by this vulnerability is some unknown functionality of the component IPv6 Packet Processor. The manipulation with an unknown input leads to a buffer over-read vulnerability. The CWE definition for the vulnerability is CWE-126. The product reads from a buffer using buffer access mechanisms such as indexes or pointers that reference memory locations after the targeted buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at github.com. This vulnerability is known as CVE-2025-11617 since 10/10/2025. The exploitation appears to be easy. The attack can be launched remotely. Neither technical details nor an exploit are publicly available.

Upgrading to version 4.3.4 eliminates this vulnerability. The upgrade is hosted for download at github.com.

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Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 5.4
CNA Vector (AMZN): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer over-read
CWE: CWE-126 / CWE-119
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: AWS FreeRTOS-Plus-TCP 4.3.4

Timelineinfo

10/10/2025 CVE reserved
10/11/2025 +1 days Advisory disclosed
10/11/2025 +0 days VulDB entry created
10/11/2025 +0 days VulDB entry last update

Sourcesinfo

Advisory: GHSA-wmjr-wm93-cvv2
Status: Confirmed

CVE: CVE-2025-11617 (🔒)
GCVE (CVE): GCVE-0-2025-11617
GCVE (VulDB): GCVE-100-327973

Entryinfo

Created: 10/11/2025 09:55
Changes: 10/11/2025 09:55 (75), 10/11/2025 09:56 (2)
Complete: 🔍
Cache ID: 216::103

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