Answer in brief
CVE-2020-27339 records a Medium severity (CVSS 6.7) vulnerability in CVE Program Container. The current sources do not mark it as known exploited. The current feed maps n/a/n/a (generic), Siemens/RUGGEDCOM APE1808 - BIOS (generic), Siemens/SIMATIC Field PG M5 (generic), Siemens/SIMATIC Field PG M6 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps n/a/n/a (generic), Siemens/RUGGEDCOM APE1808 - BIOS (generic), Siemens/SIMATIC Field PG M5 (generic), Siemens/SIMATIC Field PG M6 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:h:siemens:ruggedcom_apr1808:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_field_pg_m5:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_field_pg_m6:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc127e:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc227g:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc277g:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc327g:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc377g:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc427e:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc477e:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc477e_pro:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc627e:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc647e:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc677e:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc847e:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_itp1000:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:insyde:insydeh2o:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:ruggedcom_apr1808_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_field_pg_m6_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc127e_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc227g_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc277g_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc327g_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc377g_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc427e_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc477e_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc477e_pro_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc627e_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc647e_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc677e_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc847e_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_itp1000_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| n/a/n/ageneric | n/a | Not reported |
| Siemens/RUGGEDCOM APE1808 - BIOSgeneric | >=0 <V1.0.202N | V1.0.202N |
| Siemens/SIMATIC Field PG M5generic | >=0 <V22.01.10 | V22.01.10 |
| Siemens/SIMATIC Field PG M6generic | >=0 <V26.01.13 | V26.01.13 |
| Siemens/SIMATIC IPC127Egeneric | >=0 <V27.01.09 | V27.01.09 |
| Siemens/SIMATIC IPC227Ggeneric | >=0 <V28.01.04 | V28.01.04 |
| Siemens/SIMATIC IPC277Ggeneric | >=0 <V28.01.04 | V28.01.04 |
| Siemens/SIMATIC IPC277G PROgeneric | >=0 <V28.01.04 | V28.01.04 |
| Siemens/SIMATIC IPC327Ggeneric | >=0 <V28.01.04 | V28.01.04 |
| Siemens/SIMATIC IPC377Ggeneric | >=0 <V28.01.04 | V28.01.04 |
| Siemens/SIMATIC IPC427Egeneric | >=0 <V21.01.17 | V21.01.17 |
| Siemens/SIMATIC IPC477Egeneric | >=0 <V21.01.17 | V21.01.17 |
| Siemens/SIMATIC IPC477E PROgeneric | >=0 <V21.01.17 | V21.01.17 |
| Siemens/SIMATIC IPC627Egeneric | >=0 <V25.02.12 | V25.02.12 |
| Siemens/SIMATIC IPC647Egeneric | >=0 <V25.02.12 | V25.02.12 |
| Siemens/SIMATIC IPC677Egeneric | >=0 <V25.02.12 | V25.02.12 |
| Siemens/SIMATIC IPC847Egeneric | >=0 <V25.02.12 | V25.02.12 |
| Siemens/SIMATIC ITP1000generic | >=0 <V23.01.10 | V23.01.10 |
| Siemens/SIPLUS IPC427Egeneric | >=0 <V21.01.17 | V21.01.17 |
Published upstream
Jun 16, 2021
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 11, 2026
In the kernel in Insyde InsydeH2O 5.x, certain SMM drivers did not correctly validate the CommBuffer and CommBufferSize parameters, allowing callers to corrupt either the firmware or the OS memory. The fixed versions for this issue in the AhciBusDxe, IdeBusDxe, NvmExpressDxe, SdHostDriverDxe, and SdMmcDeviceDxe drivers are 05.16.25, 05.26.25, 05.35.25, 05.43.25, and 05.51.25 (for Kernel 5.1 through 5.5).
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2020-27339 records a Medium severity (CVSS 6.7) vulnerability in CVE Program Container. The current sources do not mark it as known exploited. The current feed maps n/a/n/a (generic), Siemens/RUGGEDCOM APE1808 - BIOS (generic), Siemens/SIMATIC Field PG M5 (generic), Siemens/SIMATIC Field PG M6 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.7. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps n/a/n/a (generic), Siemens/RUGGEDCOM APE1808 - BIOS (generic), Siemens/SIMATIC Field PG M5 (generic), Siemens/SIMATIC Field PG M6 (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:h:siemens:ruggedcom_apr1808:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_field_pg_m5:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_field_pg_m6:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc127e:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc227g:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc277g:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc327g:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc377g:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc427e:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc477e:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc477e_pro:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc627e:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc647e:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc677e:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_ipc847e:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:h:siemens:simatic_itp1000:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:insyde:insydeh2o:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:ruggedcom_apr1808_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_field_pg_m5_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_field_pg_m6_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc127e_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc227g_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc277g_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc327g_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc377g_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc427e_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc477e_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc477e_pro_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc627e_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc647e_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc677e_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_ipc847e_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:siemens:simatic_itp1000_firmware:-:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| n/a/n/ageneric | n/a | Not reported |
| Siemens/RUGGEDCOM APE1808 - BIOSgeneric | >=0 <V1.0.202N | V1.0.202N |
| Siemens/SIMATIC Field PG M5generic | >=0 <V22.01.10 | V22.01.10 |
| Siemens/SIMATIC Field PG M6generic | >=0 <V26.01.13 | V26.01.13 |
| Siemens/SIMATIC IPC127Egeneric | >=0 <V27.01.09 | V27.01.09 |
| Siemens/SIMATIC IPC227Ggeneric | >=0 <V28.01.04 | V28.01.04 |
| Siemens/SIMATIC IPC277Ggeneric | >=0 <V28.01.04 | V28.01.04 |
| Siemens/SIMATIC IPC277G PROgeneric | >=0 <V28.01.04 | V28.01.04 |
| Siemens/SIMATIC IPC327Ggeneric | >=0 <V28.01.04 | V28.01.04 |
| Siemens/SIMATIC IPC377Ggeneric | >=0 <V28.01.04 | V28.01.04 |
| Siemens/SIMATIC IPC427Egeneric | >=0 <V21.01.17 | V21.01.17 |
| Siemens/SIMATIC IPC477Egeneric | >=0 <V21.01.17 | V21.01.17 |
| Siemens/SIMATIC IPC477E PROgeneric | >=0 <V21.01.17 | V21.01.17 |
| Siemens/SIMATIC IPC627Egeneric | >=0 <V25.02.12 | V25.02.12 |
| Siemens/SIMATIC IPC647Egeneric | >=0 <V25.02.12 | V25.02.12 |
| Siemens/SIMATIC IPC677Egeneric | >=0 <V25.02.12 | V25.02.12 |
| Siemens/SIMATIC IPC847Egeneric | >=0 <V25.02.12 | V25.02.12 |
| Siemens/SIMATIC ITP1000generic | >=0 <V23.01.10 | V23.01.10 |
| Siemens/SIPLUS IPC427Egeneric | >=0 <V21.01.17 | V21.01.17 |
Published upstream
Jun 16, 2021
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 11, 2026
In the kernel in Insyde InsydeH2O 5.x, certain SMM drivers did not correctly validate the CommBuffer and CommBufferSize parameters, allowing callers to corrupt either the firmware or the OS memory. The fixed versions for this issue in the AhciBusDxe, IdeBusDxe, NvmExpressDxe, SdHostDriverDxe, and SdMmcDeviceDxe drivers are 05.16.25, 05.26.25, 05.35.25, 05.43.25, and 05.51.25 (for Kernel 5.1 through 5.5).
Quoted source text, attributed separately from HOL analysis.