CVE-2021-33626
01.10.2021, 03:15
A vulnerability exists in SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated buffer pointer(QWORD values for CommBuffer). This can be used by an attacker to corrupt data in SMRAM memory and even lead to arbitrary code execution.Enginsight
Affected Products (NVD)
| Vendor | Product | Version |
|---|---|---|
| insyde | insydeh2o | 5.3 ≤ 𝑥 < 5.34.44 |
| insyde | insydeh2o | 5.2 ≤ 𝑥 < 5.25.44 |
| insyde | insydeh2o | 5.1 ≤ 𝑥 < 5.16.25 |
| insyde | insydeh2o | 5.4 ≤ 𝑥 < 5.42.44 |
| insyde | insydeh2o | 5.3 ≤ 𝑥 < 5.35.25 |
| insyde | insydeh2o | 5.2 ≤ 𝑥 < 5.26.25 |
| insyde | insydeh2o | 5.4 ≤ 𝑥 < 5.43.25 |
| siemens | ruggedcom_apr1808_firmware | - |
| siemens | simatic_field_pg_m5_firmware | - |
| siemens | simatic_field_pg_m6_firmware | - |
| siemens | simatic_ipc127e_firmware | - |
| siemens | simatic_ipc227g_firmware | - |
| siemens | simatic_ipc277g_firmware | - |
| siemens | simatic_ipc327g_firmware | - |
| siemens | simatic_ipc377g_firmware | - |
| siemens | simatic_ipc427e_firmware | - |
| siemens | simatic_ipc477e_firmware | - |
| siemens | simatic_ipc477e_pro_firmware | - |
| siemens | simatic_ipc627e_firmware | - |
| siemens | simatic_ipc647e_firmware | - |
| siemens | simatic_ipc677e_firmware | - |
| siemens | simatic_ipc847e_firmware | - |
| siemens | simatic_itp1000_firmware | - |
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
| Vendor | Product | Version | Source |
|---|---|---|---|
| Siemens | RUGGEDCOM APE1808 - BIOS | 𝑥 < V1.0.202N | ADP |
| Siemens | SIMATIC Field PG M5 | 𝑥 < V22.01.10 | ADP |
| Siemens | SIMATIC Field PG M6 | 𝑥 < V26.01.13 | ADP |
| Siemens | SIMATIC IPC127E | 𝑥 < V27.01.09 | ADP |
| Siemens | SIMATIC IPC227G | 𝑥 < V28.01.04 | ADP |
| Siemens | SIMATIC IPC277G | 𝑥 < V28.01.04 | ADP |
| Siemens | SIMATIC IPC277G PRO | 𝑥 < V28.01.04 | ADP |
| Siemens | SIMATIC IPC327G | 𝑥 < V28.01.04 | ADP |
| Siemens | SIMATIC IPC377G | 𝑥 < V28.01.04 | ADP |
| Siemens | SIMATIC IPC427E | 𝑥 < V21.01.17 | ADP |
| Siemens | SIMATIC IPC477E | 𝑥 < V21.01.17 | ADP |
| Siemens | SIMATIC IPC477E PRO | 𝑥 < V21.01.17 | ADP |
| Siemens | SIMATIC IPC627E | 𝑥 < V25.02.12 | ADP |
| Siemens | SIMATIC IPC647E | 𝑥 < V25.02.12 | ADP |
| Siemens | SIMATIC IPC677E | 𝑥 < V25.02.12 | ADP |
| Siemens | SIMATIC IPC847E | 𝑥 < V25.02.12 | ADP |
| Siemens | SIMATIC ITP1000 | 𝑥 < V23.01.10 | ADP |
| Siemens | SIPLUS IPC427E | 𝑥 < V21.01.17 | ADP |
Common Weakness Enumeration
References