Answer in brief
CVE-2025-37924 records a Critical severity (CVSS 9.8) vulnerability in ksmbd: fix use-after-free in kerberos authentication. 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 9.8. 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:debian:debian_linux:11.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.15:rc1:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.15:rc2:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.15:rc3:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:6.15:rc4:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=0626e6641f6b467447c81dd7678a69c66f7746cf <e34a33d5d7e87399af0a138bb32f6a3e95dd83d2 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <b447463562238428503cfba1c913261047772f90 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <e18c616718018dfc440e4a2d2b94e28fe91b1861 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <28c756738af44a404a91b77830d017bb0c525890 || >=0626e6641f6b467447c81dd7678a69c66f7746cf <e86e9134e1d1c90a960dd57f59ce574d27b9a124 | e34a33d5d7e87399af0a138bb32f6a3e95dd83d2, b447463562238428503cfba1c913261047772f90, e18c616718018dfc440e4a2d2b94e28fe91b1861, 28c756738af44a404a91b77830d017bb0c525890, e86e9134e1d1c90a960dd57f59ce574d27b9a124 |
| Linux/Linuxgeneric | 5.15 | Not reported |
Published upstream
May 20, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in kerberos authentication Setting sess->user = NULL was introduced to fix the dangling pointer created by ksmbd_free_user. However, it is possible another thread could be operating on the session and make use of sess->user after it has been passed to ksmbd_free_user but before sess->user is set to NULL.
Quoted source text, attributed separately from HOL analysis.