Answer in brief
CVE-2025-38702 records a Unknown severity vulnerability in fbdev: fix potential buffer overflow in do_register_framebuffer(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC CN 4100 (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 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 CN 4100 (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <5c3f5a25c62230b7965804ce7a2e9305c3ca3961 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <cbe740de32bb0fb7a5213731ff5f26ea6718fca3 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <806f85bdd3a60187c21437fc51baace11f659f35 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <2828a433c7d7a05b6f27c8148502095101dd0b09 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <248b2aab9b2af5ecf89d9d7955a2ff20c4b4a399 || >=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <523b84dc7ccea9c4d79126d6ed1cf9033cf83b05 | 5c3f5a25c62230b7965804ce7a2e9305c3ca3961, cbe740de32bb0fb7a5213731ff5f26ea6718fca3, 806f85bdd3a60187c21437fc51baace11f659f35, 2828a433c7d7a05b6f27c8148502095101dd0b09, 248b2aab9b2af5ecf89d9d7955a2ff20c4b4a399, 523b84dc7ccea9c4d79126d6ed1cf9033cf83b05 |
| Linux/Linuxgeneric | 2.6.12 | Not reported |
| Siemens/SIMATIC CN 4100generic | >=0 <V5.0 | V5.0 |
| 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
Sep 4, 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: fbdev: fix potential buffer overflow in do_register_framebuffer() The current implementation may lead to buffer overflow when: 1. Unregistration creates NULL gaps in registered_fb[] 2. All array slots become occupied despite num_registered_fb < FB_MAX 3. The registration loop exceeds array bounds Add boundary check to prevent registered_fb[FB_MAX] access.
Quoted source text, attributed separately from HOL analysis.