Answer in brief
CVE-2023-3867 records a Critical severity (CVSS 9.1) vulnerability in ksmbd: fix out of bounds read in smb2_sess_setup. 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 |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=0626e6641f6b467447c81dd7678a69c66f7746cf <676392184785ace61e939831e7ca44a03d438c3b || >=0626e6641f6b467447c81dd7678a69c66f7746cf <ef572ffa8eb44111eed2925fbb2adca78bdcbf61 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <2ba03cecb12ac7ac9e0170e251543c56832d9959 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <98422bdd4cb3ca4d08844046f6507d7ec2c2b8d8 | 676392184785ace61e939831e7ca44a03d438c3b, ef572ffa8eb44111eed2925fbb2adca78bdcbf61, 2ba03cecb12ac7ac9e0170e251543c56832d9959, 98422bdd4cb3ca4d08844046f6507d7ec2c2b8d8 |
| Linux/Linuxgeneric | 5.15 | Not reported |
Published upstream
Aug 16, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 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: fix out of bounds read in smb2_sess_setup ksmbd does not consider the case of that smb2 session setup is in compound request. If this is the second payload of the compound, OOB read issue occurs while processing the first payload in the smb2_sess_setup().
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2023-3867 records a Critical severity (CVSS 9.1) vulnerability in ksmbd: fix out of bounds read in smb2_sess_setup. 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 |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=0626e6641f6b467447c81dd7678a69c66f7746cf <676392184785ace61e939831e7ca44a03d438c3b || >=0626e6641f6b467447c81dd7678a69c66f7746cf <ef572ffa8eb44111eed2925fbb2adca78bdcbf61 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <2ba03cecb12ac7ac9e0170e251543c56832d9959 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <98422bdd4cb3ca4d08844046f6507d7ec2c2b8d8 | 676392184785ace61e939831e7ca44a03d438c3b, ef572ffa8eb44111eed2925fbb2adca78bdcbf61, 2ba03cecb12ac7ac9e0170e251543c56832d9959, 98422bdd4cb3ca4d08844046f6507d7ec2c2b8d8 |
| Linux/Linuxgeneric | 5.15 | Not reported |
Published upstream
Aug 16, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 4, 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: fix out of bounds read in smb2_sess_setup ksmbd does not consider the case of that smb2 session setup is in compound request. If this is the second payload of the compound, OOB read issue occurs while processing the first payload in the smb2_sess_setup().
Quoted source text, attributed separately from HOL analysis.