To mitigate this issue, users should upgrade to the fixed version when available.
Analysis and contextual insights are available on OpenCVE Cloud.
No vendor fix or workaround currently provided.
Additional remediation guidance may be available on OpenCVE Cloud.
Tracking
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Mon, 04 May 2026 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:amazon:freertos-plus-tcp:*:*:*:*:*:*:*:* |
Thu, 30 Apr 2026 08:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Amazon
Amazon freertos-plus-tcp |
|
| Vendors & Products |
Amazon
Amazon freertos-plus-tcp |
Wed, 29 Apr 2026 19:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Wed, 29 Apr 2026 19:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Integer underflow in the ICMP and ICMPv6 echo reply handlers in FreeRTOS-Plus-TCP before V4.4.1 and V4.2.6 allows an adjacent network user to cause a denial of service (device crash) when outgoing ping support is enabled, because header sizes are subtracted from a packet length field without validating the field is large enough, resulting in a heap out-of-bounds read of up to approximately 65KB. To mitigate this issue, users should upgrade to the fixed version when available. | |
| Title | Integer Underflow in ICMP Echo Reply Processing in FreeRTOS-Plus-TCP | |
| Weaknesses | CWE-191 | |
| References |
| |
| Metrics |
cvssV3_1
|
Status: PUBLISHED
Assigner: AMZN
Published:
Updated: 2026-04-29T19:08:11.602Z
Reserved: 2026-04-29T14:27:49.474Z
Link: CVE-2026-7423
Updated: 2026-04-29T19:08:07.142Z
Status : Analyzed
Published: 2026-04-29T19:16:26.617
Modified: 2026-05-04T13:35:00.500
Link: CVE-2026-7423
No data.
OpenCVE Enrichment
Updated: 2026-04-30T08:15:31Z