7.1

CVE-2026-43141: linux Out-of-bounds Read

CVSS: 7.1v3.1HighAnalyzed
AliasesUBUNTU-CVE-2026-43141DEBIAN-CVE-2026-43141
Published 06-05-2026Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2026-43141 is a high (CVSS 7.1) Out-of-bounds Read vulnerability in linux. EPSS estimates a 0.17% chance of exploitation in the next 30 days, higher than 5.5% of scored vulnerabilities.

Overall risk
28/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.1/10
010
High · v3.1 (NVD)
EPSS score
0.17%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 37 · Related 37
OPENSUSE-SU-2026:21555-1SUSE-SU-2026:23066-1SUSE-SU-2026:23068-1SUSE-SU-2026:23193-1SUSE-SU-2026:23194-1SUSE-SU-2026:23221-1

Timeline

  1. 06-05-2026
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: ntb: ntb_hw_switchtec: Fix shift-out-of-bounds for 0 mw lut Number of MW LUTs depends on NTB configuration and can be set to zero, in such scenario rounddown_pow_of_two will cause undefined behaviour and should not be performed. This patch ensures that rounddown_pow_of_two is called on valid value.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.17%

Chance of exploitation in the next 30 days

Percentile

6%

Versus all other CVEs

30-day change

+0.04 pp

From 0.13% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.17%

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

Affected systems

Ubuntu157 products
  • linuxAll versions (No fix recorded) | < 5.15.0-186.196 | < 6.8.0-134.134
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1112.119 | < 6.8.0-1060.63
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ ec0467ccbdeb69a86c8729073057bda7bce00eec, < d652ef399f131fcd5f8f34266167449ee7c9e5b3 | ≥ ec0467ccbdeb69a86c8729073057bda7bce00eec, < 5590cd04d6845c01a6bad985a491c58af6fb5389 | ≥ ec0467ccbdeb69a86c8729073057bda7bce00eec, < a11d03d116eef138a7249202bd772c8e61915aec | ≥ ec0467ccbdeb69a86c8729073057bda7bce00eec, < d0559d07afabfddaaded6a61a16154486b956764 | ≥ ec0467ccbdeb69a86c8729073057bda7bce00eec, < 2e4d5e8d86a969318340be95470bb76e52392082 | ≥ ec0467ccbdeb69a86c8729073057bda7bce00eec, < a133e3caf844a3f56b6eef89ddaa66115874f6bd | ≥ ec0467ccbdeb69a86c8729073057bda7bce00eec, < 1a867d0d79a4a570a33f2f433919ad2bd7a27b67 | ≥ ec0467ccbdeb69a86c8729073057bda7bce00eec, < 186615f8855a0be4ee7d3fcd09a8ecc10e783b08 | 4.15
  • linux_kernel≥ 4.15, < 5.10.252 | ≥ 5.11, < 5.15.202 | ≥ 5.16, < 6.1.165 | ≥ 6.2, < 6.6.128 | ≥ 6.7, < 6.12.75 | ≥ 6.13, < 6.18.16 | ≥ 6.19, < 6.19.6
Debian1 product
  • linux< 6.1.170-1 | < 6.12.85-1 | < 6.19.6-1

3 vendors · 160 products

References

37 links
Show all 37 references