6.5
CVE-2026-7423
- EPSS 0.02%
- Veröffentlicht 29.04.2026 19:16:26
- Zuletzt bearbeitet 04.05.2026 13:35:00
- Quelle ff89ba41-3aa1-4d27-914a-91399e
- CVE-Watchlists
- Unerledigt
LoginInteger 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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Amazon ≫ Freertos-plus-tcp Version >= 4.0.0 < 4.2.6
Amazon ≫ Freertos-plus-tcp Version >= 4.3.0 < 4.4.1
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.02% | 0.054 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 6.5 | 2.8 | 3.6 |
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
|
| ff89ba41-3aa1-4d27-914a-91399e9639e5 | 6 | 0 | 0 |
CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
|
| ff89ba41-3aa1-4d27-914a-91399e9639e5 | 5.3 | 1.6 | 3.6 |
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
|
CWE-191 Integer Underflow (Wrap or Wraparound)
The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.