7.8

CVE-2023-54168: linux

CVSS: 7.8v3.1HighDeferred
AliasesUBUNTU-CVE-2023-54168DEBIAN-CVE-2023-54168
Published 30-12-2025Last modified 15-10-2026
Open JSON

Vulnerability summary

CVE-2023-54168 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.15% chance of exploitation in the next 30 days, higher than 4.2% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.15%
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 8 · Related 8
SUSE-SU-2026:0263-1SUSE-SU-2026:0316-1SUSE-SU-2026:0317-1SUSE-SU-2026:0350-1SUSE-SU-2026:0352-1SUSE-SU-2026:0369-1

Timeline

  1. 30-12-2025
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx4: Prevent shift wrapping in set_user_sq_size() The ucmd->log_sq_bb_count variable is controlled by the user so this shift can wrap. Fix it by using check_shl_overflow() in the same way that it was done in commit 515f60004ed9 ("RDMA/hns: Prevent undefined behavior in hns_roce_set_user_sq_size()").

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.15%

Chance of exploitation in the next 30 days

Percentile

4%

Versus all other CVEs

30-day change

0.00 pp

From 0.15% on 21-09-2026

21-09-202621-10-2026
EPSS score
0.15%

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

Ubuntu124 products
  • linuxAll versions (No fix recorded) | < 5.4.0-162.179 | < 5.15.0-79.86
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1109.118 | < 5.15.0-1042.47
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.37-1 | < 6.3.7-1
Linux1 product
  • linux≥ 839041329fd3410e07d614f81e75bb43367d8f89, < 3d5ae269c4bd392ec1edbfb3bd031b8f42d7feff | ≥ 839041329fd3410e07d614f81e75bb43367d8f89, < 8feca625900777e02a449e53fe4121339934c38a | ≥ 839041329fd3410e07d614f81e75bb43367d8f89, < 9ad3221c86cc9c6305594b742d4a72dfbd4ea579 | ≥ 839041329fd3410e07d614f81e75bb43367d8f89, < 9911be2155720221a4f1f722b22bd0e2388d8bcf | ≥ 839041329fd3410e07d614f81e75bb43367d8f89, < 3ce0df3493277b9df275cb8455d9c677ae701230 | ≥ 839041329fd3410e07d614f81e75bb43367d8f89, < 196a6df08b08699ace4ce70e1efcdd9081b6565f | ≥ 839041329fd3410e07d614f81e75bb43367d8f89, < a183905869e692b6b7805b7472235585eff8e429 | ≥ 839041329fd3410e07d614f81e75bb43367d8f89, < d50b3c73f1ac20dabc53dc6e9d64ce9c79a331eb | 2.6.24

3 vendors · 126 products

References

12 links
Show all 12 references