7.5

CVE-2025-68283: linux

CVSS: 7.5v3.1HighDeferred
AliasesUBUNTU-CVE-2025-68283DEBIAN-CVE-2025-68283
Published 16-12-2025Last modified 15-10-2026

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.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.53%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 31 · Related 28

Timeline

  1. 16-12-2025
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last 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

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

19-09-202619-10-2026
EPSS score
0.53%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No 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

References

26 links
Show all 26 references