CVE-2025-68283: linux
Vulnerability summary
CVE-2025-68283 is a high (CVSS 7.5) vulnerability in linux. EPSS estimates a 0.53% chance of exploitation in the next 30 days, higher than 43.5% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 31 · Related 28Timeline
- 16-12-2025PublishedVulnerability first disclosed.
- 15-10-2026Last modifiedVulnerability information updated.
Description
In the Linux kernel, the following vulnerability has been resolved: libceph: replace BUG_ON with bounds check for map->max_osd OSD indexes come from untrusted network packets. Boundary checks are added to validate these against map->max_osd. [ idryomov: drop BUG_ON in ceph_get_primary_affinity(), minor cosmetic edits ]
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.53%
Chance of exploitation in the next 30 days
Percentile
44%
Versus all other CVEs
30-day change
0.00 pp
From 0.52% 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
Ubuntu157 products
- linuxAll versions (No fix recorded) | < 6.8.0-106.106 | < 6.17.0-19.19
- linux-allwinner-5.19All versions (No fix recorded)
- linux-awsAll versions (No fix recorded) | < 6.8.0-1050.53 | < 6.17.0-1009.9
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian1 product
- linux< 6.1.159-1 | < 6.12.63-1 | < 6.17.11-1
Linux1 product
- linux≥ f24e9980eb860d8600cbe5ef3d2fd9295320d229, < 57f5fbae9f1024aba17ff75e00433324115c548a | ≥ f24e9980eb860d8600cbe5ef3d2fd9295320d229, < becc488a4d864db338ebd4e313aa3c77da24b604 | ≥ f24e9980eb860d8600cbe5ef3d2fd9295320d229, < e67e3be690f5f7e3b031cf29e8d91e6d02a8e30d | ≥ f24e9980eb860d8600cbe5ef3d2fd9295320d229, < b4368b7f97014e1015445d61abd0b27c4c6e8424 | ≥ f24e9980eb860d8600cbe5ef3d2fd9295320d229, < ec3797f043756a94ea2d0f106022e14ac4946c02 | 2.6.34
3 vendors · 159 products