Amazon AWS FreeRTOS-Plus-TCP up to 4.3.3 UDP/IPv6 null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.2$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Amazon AWS FreeRTOS-Plus-TCP up to 4.3.3. This impacts an unknown function of the component UDP/IPv6. Such manipulation leads to null pointer dereference. This vulnerability is traded as CVE-2025-11618. The attack may be launched remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Amazon AWS FreeRTOS-Plus-TCP up to 4.3.3 and classified as problematic. Affected by this issue is an unknown part of the component UDP/IPv6. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. CVE summarizes:

A missing validation check in FreeRTOS-Plus-TCP's UDP/IPv6 packet processing code can lead to an invalid pointer dereference when receiving a UDP/IPv6 packet with an incorrect IP version field in the packet header. This issue only affects applications using IPv6. We recommend upgrading to the latest version and ensure any forked or derivative code is patched to incorporate the new fixes.

The advisory is available at github.com. This vulnerability is handled as CVE-2025-11618 since 10/10/2025. The exploitation is known to be easy. The attack may be launched remotely. The technical details are unknown and an exploit is not 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: 4.3
VulDB Meta Temp Score: 4.2

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.3
CNA Vector (AMZN): 🔒

CVSSv2info

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

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
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-6fh9-mqxj-hmwj
Status: Confirmed

CVE: CVE-2025-11618 (🔒)
GCVE (CVE): GCVE-0-2025-11618
GCVE (VulDB): GCVE-100-327974

Entryinfo

Created: 10/11/2025 09:56
Changes: 10/11/2025 09:56 (78)
Complete: 🔍
Cache ID: 216::103

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