Answer in brief
CVE-2023-4515 records a Critical severity (CVSS 9.1) vulnerability in ksmbd: validate command request size. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). 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 9.1. 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). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.4:-:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.5:rc3:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.5:rc4:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.5:rc5:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=35f450f54dca1519bb24faacd0428db09f89a11f <595679098bdcdbfbba91ebe07a2f7f208df93870 || >=9650cf70ec9d94ff34daa088b643229231723c26 <c6bef3bc30fd4a175aef846b7d928a6c40d091cd || >=2b9b8f3b68edb3d67d79962f02e26dbb5ae3808d <ff7236b66d69582f90cf5616e63cfc3dc18142bb || >=2b9b8f3b68edb3d67d79962f02e26dbb5ae3808d <5aa4fda5aa9c2a5a7bac67b4a12b089ab81fee3c || 768caf4019f0391c0b6452afe34cea1704133f7b || >=5.15.121 <5.15.127 || >=6.1.36 <6.1.46 || >=6.3.10 <6.4 | 595679098bdcdbfbba91ebe07a2f7f208df93870, c6bef3bc30fd4a175aef846b7d928a6c40d091cd, ff7236b66d69582f90cf5616e63cfc3dc18142bb, 5aa4fda5aa9c2a5a7bac67b4a12b089ab81fee3c, 5.15.127, 6.1.46, 6.4 |
| Linux/Linuxgeneric | 6.4 | Not reported |
Published upstream
Aug 16, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate command request size In commit 2b9b8f3b68ed ("ksmbd: validate command payload size"), except for SMB2_OPLOCK_BREAK_HE command, the request size of other commands is not checked, it's not expected. Fix it by add check for request size of other commands.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2023-4515 records a Critical severity (CVSS 9.1) vulnerability in ksmbd: validate command request size. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). 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 9.1. 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). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.4:-:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.5:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.5:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.5:rc3:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.5:rc4:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.5:rc5:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=35f450f54dca1519bb24faacd0428db09f89a11f <595679098bdcdbfbba91ebe07a2f7f208df93870 || >=9650cf70ec9d94ff34daa088b643229231723c26 <c6bef3bc30fd4a175aef846b7d928a6c40d091cd || >=2b9b8f3b68edb3d67d79962f02e26dbb5ae3808d <ff7236b66d69582f90cf5616e63cfc3dc18142bb || >=2b9b8f3b68edb3d67d79962f02e26dbb5ae3808d <5aa4fda5aa9c2a5a7bac67b4a12b089ab81fee3c || 768caf4019f0391c0b6452afe34cea1704133f7b || >=5.15.121 <5.15.127 || >=6.1.36 <6.1.46 || >=6.3.10 <6.4 | 595679098bdcdbfbba91ebe07a2f7f208df93870, c6bef3bc30fd4a175aef846b7d928a6c40d091cd, ff7236b66d69582f90cf5616e63cfc3dc18142bb, 5aa4fda5aa9c2a5a7bac67b4a12b089ab81fee3c, 5.15.127, 6.1.46, 6.4 |
| Linux/Linuxgeneric | 6.4 | Not reported |
Published upstream
Aug 16, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate command request size In commit 2b9b8f3b68ed ("ksmbd: validate command payload size"), except for SMB2_OPLOCK_BREAK_HE command, the request size of other commands is not checked, it's not expected. Fix it by add check for request size of other commands.
Quoted source text, attributed separately from HOL analysis.