Answer in brief
CVE-2025-21848 records a Unknown severity vulnerability in nfp: bpf: Add check for nfp_app_ctrl_msg_alloc(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (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.
A CVSS score is not reported in the current record. 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 Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ff3d43f7568c82b335d7df2d40a31447c3fce10c <d64c6ca420019712e194fe095b55f87363e22a9a || >=ff3d43f7568c82b335d7df2d40a31447c3fce10c <e976ea6c5e1b005c64467cbf94a8577aae9c7d81 || >=ff3d43f7568c82b335d7df2d40a31447c3fce10c <924b239f9704566e0d86abd894d2d64bd73c11eb || >=ff3d43f7568c82b335d7df2d40a31447c3fce10c <1358d8e07afdf21d49ca6f00c56048442977e00a || >=ff3d43f7568c82b335d7df2d40a31447c3fce10c <29ccb1e4040da6ff02b7e64efaa2f8e6bf06020d || >=ff3d43f7568c82b335d7df2d40a31447c3fce10c <897c32cd763fd11d0b6ed024c52f44d2475bb820 || >=ff3d43f7568c82b335d7df2d40a31447c3fce10c <bd97f60750bb581f07051f98e31dfda59d3a783b || >=ff3d43f7568c82b335d7df2d40a31447c3fce10c <878e7b11736e062514e58f3b445ff343e6705537 | d64c6ca420019712e194fe095b55f87363e22a9a, e976ea6c5e1b005c64467cbf94a8577aae9c7d81, 924b239f9704566e0d86abd894d2d64bd73c11eb, 1358d8e07afdf21d49ca6f00c56048442977e00a, 29ccb1e4040da6ff02b7e64efaa2f8e6bf06020d, 897c32cd763fd11d0b6ed024c52f44d2475bb820, bd97f60750bb581f07051f98e31dfda59d3a783b, 878e7b11736e062514e58f3b445ff343e6705537 |
| Linux/Linuxgeneric | 4.16 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.5 <* | * |
Published upstream
Mar 12, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 6, 2026
In the Linux kernel, the following vulnerability has been resolved: nfp: bpf: Add check for nfp_app_ctrl_msg_alloc() Add check for the return value of nfp_app_ctrl_msg_alloc() in nfp_bpf_cmsg_alloc() to prevent null pointer dereference.
Quoted source text, attributed separately from HOL analysis.