CVE-2025-37956: linux
Vulnerability summary
CVE-2025-37956 is a high (CVSS 8.8) vulnerability in linux. EPSS estimates a 0.38% chance of exploitation in the next 30 days, higher than 30.4% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 21 · Related 19Timeline
- 20-05-2025PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: prevent rename with empty string Client can send empty newname string to ksmbd server. It will cause a kernel oops from d_alloc. This patch return the error when attempting to rename a file or directory with an empty new name string.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
- NVDNIST5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
0.38%
Chance of exploitation in the next 30 days
Percentile
30%
Versus all other CVEs
30-day change
+0.03 pp
From 0.35% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Ubuntu133 products
- linuxAll versions (No fix recorded) | < 6.8.0-100.100
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 6.8.0-1046.49
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < 6ee551672c8cf36108b0cfba92ec0c7c28ac3439 | ≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < c57301e332cc413fe0a7294a90725f4e21e9549d | ≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < d7f2c00acb1ef64304fd40ac507e9213ff1d9b5c | ≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < 53e3e5babc0963a92d856a5ec0ce92c59f54bc12 | 5.15
- linux_kernel≥ 5.15, < 6.6.91 | ≥ 6.7, < 6.12.29 | ≥ 6.13, < 6.14.7 | 6.15:rc1 | 6.15:rc2 | 6.15:rc3 | 6.15:rc4 | 6.15:rc5
Debian1 product
- linuxAll versions (No fix recorded) | < 6.12.29-1
3 vendors · 136 products