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.
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.
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.