CVE-2026-7423
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Integer Underflow in ICMP Echo Reply Processing in FreeRTOS-Plus-TCP
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.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
FreeRTOS-Plus-TCP
- Vendor
- AWS
- Product
- FreeRTOS-Plus-TCP
- Platforms
- Unknown
- Default status
unaffected- Package collection
- https://github.com/FreeRTOS/FreeRTOS-Plus-TCP
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.0.0 | affected | semver | 4.2.6 | Unavailable | None listed |
| 4.3.0 | affected | semver | 4.4.1 | Unavailable | None listed |
| 4.2.6 | unaffected | Unavailable | Unavailable | Unavailable | None listed |
| 4.4.1 | unaffected | Unavailable | Unavailable | Unavailable | None listed |