CVE-2024-26952: ksmbd: fix potencial out-of-bounds when buffer offset is invalid
Vulnerability summary
CVE-2024-26952 is a high (CVSS 8.3) vulnerability in linux. EPSS estimates a 0.73% chance of exploitation in the next 30 days, higher than 54.2% of scored vulnerabilities.
Not severe (CVSS 8.3, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 13 · Related 11Timeline
- 01-05-2024PublishedVulnerability first disclosed.
- 05-08-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix potencial out-of-bounds when buffer offset is invalid I found potencial out-of-bounds when buffer offset fields of a few requests is invalid. This patch set the minimum value of buffer offset field to ->Buffer offset to validate buffer length.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated8.3HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HDiffers
- NVDNIST7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HDiffers
EPSS trend
Probability
0.73%
Chance of exploitation in the next 30 days
Percentile
54%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.73% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-120Buffer Copy without Checking Size of InputThe product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer.
- CWE-125Out-of-bounds ReadThe product reads data past the end, or before the beginning, of the intended buffer.
Affected systems
Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu105 products
- linux< 5.15.0-117.127 | < 6.8.0-35.35
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.15.0-1066.72 | < 6.8.0-1009.9
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Linux2 products
- linux≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < 480469f145e5abf83361e608734e421b7d99693d | ≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < ad6480c9a5d884e2704adc51d69895d93339176c | ≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < 39bdc4197acf2ed13269167ccf093ee28cfa2a4e | ≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < 2dcda336b6e80b72d58d30d40f2fad9724e5fe63 | ≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < 0c5541b4c980626fa3cab16ba1a451757778bbb5 | ≥ 0626e6641f6b467447c81dd7678a69c66f7746cf, < c6cd2e8d2d9aa7ee35b1fa6a668e32a22a9753da | 5.15
- linux_kernel≥ 5.15, < 5.15.181 | ≥ 5.16, < 6.1.119 | ≥ 6.2, < 6.6.32 | ≥ 6.7, < 6.7.12 | ≥ 6.8, < 6.8.3
Debian1 product
- linux< 6.1.119-1 | < 6.7.12-1
3 vendors · 108 products
