5.5

CVE-2026-43148: linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-43148DEBIAN-CVE-2026-43148
Published 06-05-2026Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2026-43148 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.16% chance of exploitation in the next 30 days, higher than 5% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.16%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 25 · Related 25
USN-8492-1USN-8492-2USN-8492-3USN-8492-4USN-8492-5USN-8497-1

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: powerpc/smp: Add check for kcalloc() failure in parse_thread_groups() As kcalloc() may fail, check its return value to avoid a NULL pointer dereference when passing it to of_property_read_u32_array().

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.16%

Chance of exploitation in the next 30 days

Percentile

5%

Versus all other CVEs

30-day change

+0.03 pp

From 0.13% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.16%

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

Ubuntu145 products
  • linux< 5.15.0-186.196 | < 6.8.0-134.134 | All versions (No fix recorded)
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1112.119 | < 6.8.0-1060.63 | All versions (No fix recorded)
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2, < 1de31dba19c3cd0c1caf388a286b46df638f0b91 | ≥ 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2, < b265e53d9adfbb5751713185843f7188aa9dd066 | ≥ 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2, < 9d0ca11258e7b452653d04310addfec1753de1a2 | ≥ 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2, < ca46d2092f307385a7acfb42632056570d6dbbbc | ≥ 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2, < 9b85c8f624b0f8cf9b932f5a65dacd56a1f47a72 | ≥ 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2, < 8b221db0b7d24675e465e98d9326d298025a4e8d | ≥ 790a1662d3a26fe9fa5f691386d8fde6bb8b0dc2, < 33c1c6d8a28a2761ac74b0380b2563cf546c2a3a | 5.11
  • linux_kernel≥ 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 · 148 products

References

36 links
Show all 36 references