5.5

CVE-2026-43159: linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-43159DEBIAN-CVE-2026-43159
Published 06-05-2026Last modified 11-05-2026
Open JSON

Vulnerability summary

CVE-2026-43159 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 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: staging: rtl8723bs: fix null dereference in find_network The variable pwlan has the possibility of being NULL when passed into rtw_free_network_nolock() which would later dereference the variable.

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

Ubuntu156 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≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < 3b1d0c9a1f78836d0bce6fdd37f596f22c19b03e | ≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < 1aa9c59f4b96a9056c02476c7ca89e96d15e0645 | ≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < 48b4dec3a8bfd667cd0cd767eaf511176193e9a1 | ≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < cc3f83b6fb3773ad943365d1cd774b4ec050332e | ≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < 04d24a3654ed195485bc6346a9ef326fc494a34e | ≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < 677490a6bd4c63acdf6f48e4aaf6a23d7e6a446f | ≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < 7fa16ffed2b9d9d44940990c1f31159770769aeb | ≥ 554c0a3abf216c991c5ebddcdb2c08689ecd290b, < 41460a19654c32d39fd0e3a3671cd8d4b7b8479f | 4.12
  • linux_kernel≥ 4.12, < 5.10.253 | ≥ 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 · 159 products

References

37 links
Show all 37 references