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NVD / CVE Program· CNA Linux

CVE-2026-43159: staging: rtl8723bs: fix null dereference in find_network

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.12% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 04d24a3654ed195485bc6346a9ef326fc494a34e, 1aa9c59f4b96a9056c02476c7ca89e96d15e0645, 3b1d0c9a1f78836d0bce6fdd37f596f22c19b03e.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 04d24a3654ed195485bc6346a9ef326fc494a34e, 1aa9c59f4b96a9056c02476c7ca89e96d15e0645, 3b1d0c9a1f78836d0bce6fdd37f596f22c19b03e or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
May 6, 2026
Updated
Jun 17, 2026
EPSS
0.1% · 2th percentile

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-43159

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel4.12 and later · before 5.10.253
  • linux linux kernel5.11 and later · before 5.15.202
  • linux linux kernel5.16 and later · before 6.1.165
  • linux linux kernel6.2 and later · before 6.6.128
  • linux linux kernel6.7 and later · before 6.12.75
  • linux linux kernel6.13 and later · before 6.18.16
  • linux linux kernel6.19 and later · before 6.19.6

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 4.12affected
    • 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before 3b1d0c9a1f78836d0bce6fdd37f596f22c19b03eaffected · git
    • 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before 1aa9c59f4b96a9056c02476c7ca89e96d15e0645affected · git
    • 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before 48b4dec3a8bfd667cd0cd767eaf511176193e9a1affected · git
    • 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before cc3f83b6fb3773ad943365d1cd774b4ec050332eaffected · git
    • 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before 04d24a3654ed195485bc6346a9ef326fc494a34eaffected · git
    • 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before 677490a6bd4c63acdf6f48e4aaf6a23d7e6a446faffected · git
    • 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before 7fa16ffed2b9d9d44940990c1f31159770769aebaffected · git
    • 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before 41460a19654c32d39fd0e3a3671cd8d4b7b8479faffected · git
    • before 4.12not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.170-16.1.170-1
Debian:13linuxbefore 6.12.85-16.12.85-1
Debian:14linuxbefore 6.19.6-16.19.6-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2026-43154May 6, 2026 · erofs: fix incorrect early exits in volume label handling
    22Monitor
  • ← EarlierCVE-2026-43155May 6, 2026 · mux: mmio: fix regmap leak on probe failure
    22Monitor
  • Later →CVE-2026-43160May 6, 2026 · mfd: macsmc: Initialize mutex
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux04d24a3654ed195485bc6346a9ef326fc494a34eVendor (CNA)
Linux Linux1aa9c59f4b96a9056c02476c7ca89e96d15e0645Vendor (CNA)
Linux Linux3b1d0c9a1f78836d0bce6fdd37f596f22c19b03eVendor (CNA)
Linux Linux41460a19654c32d39fd0e3a3671cd8d4b7b8479fVendor (CNA)
Linux Linux48b4dec3a8bfd667cd0cd767eaf511176193e9a1Vendor (CNA)
Linux Linux677490a6bd4c63acdf6f48e4aaf6a23d7e6a446fVendor (CNA)
Linux Linux7fa16ffed2b9d9d44940990c1f31159770769aebVendor (CNA)
Linux Linuxcc3f83b6fb3773ad943365d1cd774b4ec050332eVendor (CNA)
debian:linux6.1.170-1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-476 · NULL Pointer Dereference

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records