Answer in brief
CVE-2025-37909 records a Medium severity (CVSS 5.5) vulnerability in net: lan743x: Fix memleak issue when GSO enabled. 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.
Answer in brief
CVE-2025-37909 records a Medium severity (CVSS 5.5) vulnerability in net: lan743x: Fix memleak issue when GSO enabled. 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.
CVSS is 5.5. 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 | >=23f0703c125be490f70501b6b24ed5645775c56a <093855ce90177488eac772de4eefbb909033ce5f || >=23f0703c125be490f70501b6b24ed5645775c56a <6c65ee5ad632eb8dcd3a91cf5dc99b22535f44d9 || >=23f0703c125be490f70501b6b24ed5645775c56a <df993daa4c968b4b23078eacc248f6502ede8664 || >=23f0703c125be490f70501b6b24ed5645775c56a <a0e0efbabbbe6a1859bc31bf65237ce91e124b9b || >=23f0703c125be490f70501b6b24ed5645775c56a <dae1ce27ceaea7e1522025b15252e3cc52802622 || >=23f0703c125be490f70501b6b24ed5645775c56a <189b05f189cac9fd233ef04d31cb5078c4d09c39 || >=23f0703c125be490f70501b6b24ed5645775c56a <f42c18e2f14c1b1fdd2a5250069a84bc854c398c || >=23f0703c125be490f70501b6b24ed5645775c56a <2d52e2e38b85c8b7bc00dca55c2499f46f8c8198 | 093855ce90177488eac772de4eefbb909033ce5f, 6c65ee5ad632eb8dcd3a91cf5dc99b22535f44d9, df993daa4c968b4b23078eacc248f6502ede8664, a0e0efbabbbe6a1859bc31bf65237ce91e124b9b, dae1ce27ceaea7e1522025b15252e3cc52802622, 189b05f189cac9fd233ef04d31cb5078c4d09c39, f42c18e2f14c1b1fdd2a5250069a84bc854c398c, 2d52e2e38b85c8b7bc00dca55c2499f46f8c8198 |
| Linux/Linuxgeneric | 4.17 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
Published upstream
May 20, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 14, 2026
In the Linux kernel, the following vulnerability has been resolved: net: lan743x: Fix memleak issue when GSO enabled Always map the `skb` to the LS descriptor. Previously skb was mapped to EXT descriptor when the number of fragments is zero with GSO enabled. Mapping the skb to EXT descriptor prevents it from being freed, leading to a memory leak
Quoted source text, attributed separately from HOL analysis.
CVSS is 5.5. 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 | >=23f0703c125be490f70501b6b24ed5645775c56a <093855ce90177488eac772de4eefbb909033ce5f || >=23f0703c125be490f70501b6b24ed5645775c56a <6c65ee5ad632eb8dcd3a91cf5dc99b22535f44d9 || >=23f0703c125be490f70501b6b24ed5645775c56a <df993daa4c968b4b23078eacc248f6502ede8664 || >=23f0703c125be490f70501b6b24ed5645775c56a <a0e0efbabbbe6a1859bc31bf65237ce91e124b9b || >=23f0703c125be490f70501b6b24ed5645775c56a <dae1ce27ceaea7e1522025b15252e3cc52802622 || >=23f0703c125be490f70501b6b24ed5645775c56a <189b05f189cac9fd233ef04d31cb5078c4d09c39 || >=23f0703c125be490f70501b6b24ed5645775c56a <f42c18e2f14c1b1fdd2a5250069a84bc854c398c || >=23f0703c125be490f70501b6b24ed5645775c56a <2d52e2e38b85c8b7bc00dca55c2499f46f8c8198 | 093855ce90177488eac772de4eefbb909033ce5f, 6c65ee5ad632eb8dcd3a91cf5dc99b22535f44d9, df993daa4c968b4b23078eacc248f6502ede8664, a0e0efbabbbe6a1859bc31bf65237ce91e124b9b, dae1ce27ceaea7e1522025b15252e3cc52802622, 189b05f189cac9fd233ef04d31cb5078c4d09c39, f42c18e2f14c1b1fdd2a5250069a84bc854c398c, 2d52e2e38b85c8b7bc00dca55c2499f46f8c8198 |
| Linux/Linuxgeneric | 4.17 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
Published upstream
May 20, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Jul 14, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 14, 2026
In the Linux kernel, the following vulnerability has been resolved: net: lan743x: Fix memleak issue when GSO enabled Always map the `skb` to the LS descriptor. Previously skb was mapped to EXT descriptor when the number of fragments is zero with GSO enabled. Mapping the skb to EXT descriptor prevents it from being freed, leading to a memory leak
Quoted source text, attributed separately from HOL analysis.