CVE-2026-43386· NVD / CVE Program· CNA Linux

staging: rtl8723bs: fix potential out-of-bounds read in rtw_restruct_wmm_ie

Noroxi assessment

Priority: Monitor (action score 28/100)

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: 0.16% (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 12cc6e8f8d4245b7b5a408c6fc8ab1d098d67020, 209644e25757c499e1c1f08c071ea0386d4448b6, 4dd2d9cf563c54e09d5f7eacf95c5b8f538b513b.
Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 12cc6e8f8d4245b7b5a408c6fc8ab1d098d67020, 209644e25757c499e1c1f08c071ea0386d4448b6, 4dd2d9cf563c54e09d5f7eacf95c5b8f538b513b 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 potential out-of-bounds read in rtw_restruct_wmm_ie The current code checks 'i + 5 < in_len' at the end of the if statement. However, it accesses 'in_ie[i + 5]' before that check, which can lead to an out-of-bounds read. Move the length check to the beginning of the conditional to ensure the index is within bounds before accessing the array.

HighCVSS 7.1 · v3.1—No exploit Fix available

Memory safety

BDU:2026-15616

Published: May 8, 2026
Updated: Jun 17, 2026
EPSS: 0.1% · 5th percentile
CWE: CWE-125

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 28 / 40 · 7.1 / 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

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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.

Vendor	Product	CPE
linux	linux kernel	cpe:2.3:o:linux:linux_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 5.15.203
linux linux kernel5.16 and later · before 6.1.167
linux linux kernel6.2 and later · before 6.6.130
linux linux kernel6.7 and later · before 6.12.78
linux linux kernel6.13 and later · before 6.18.19
linux linux kernel6.19 and later · before 6.19.9
linux linux kernel7.0

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 6ff2243d5e05a5239e39d4ba61d96b0ea3bf7259affected · git
- 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before 12cc6e8f8d4245b7b5a408c6fc8ab1d098d67020affected · git
- 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before 209644e25757c499e1c1f08c071ea0386d4448b6affected · git
- 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before 768f25613a9fe6766d15a4a72979657adfc1c6d8affected · git
- 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before e14a1148f02e8cf1ca380d57e4b95ca36c97f45daffected · git
- 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before 4dd2d9cf563c54e09d5f7eacf95c5b8f538b513baffected · git
- 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before d97fc1b29513010b60fde874c7f0ba816744e18caffected · git
- 554c0a3abf216c991c5ebddcdb2c08689ecd290b and later · before a75281626fc8fa6dc6c9cc314ee423e8bc45203baffected · git
- before 4.12not affected · semver

Package-level exposure

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

Ecosystem	Package	Affected range	Fix
Debian:12	linux	before 6.1.170-1	6.1.170-1
Debian:13	linux	before 6.12.85-1	6.12.85-1
Debian:14	linux	before 6.19.10-1	6.19.10-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

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
CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV
83Now

Published before and after this one in the same product

← EarlierCVE-2026-43384May 8, 2026 · net/tcp-ao: Fix MAC comparison to be constant-time
39Monitor
← EarlierCVE-2026-43385May 8, 2026 · net: Fix rcu_tasks stall in threaded busypoll
30Monitor
Later →CVE-2026-43387May 8, 2026 · staging: rtl8723bs: properly validate the data in rtw_get_ie_ex()
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 / package	Fixed version	Source
Linux Linux	12cc6e8f8d4245b7b5a408c6fc8ab1d098d67020	Vendor (CNA)
Linux Linux	209644e25757c499e1c1f08c071ea0386d4448b6	Vendor (CNA)
Linux Linux	4dd2d9cf563c54e09d5f7eacf95c5b8f538b513b	Vendor (CNA)
Linux Linux	6ff2243d5e05a5239e39d4ba61d96b0ea3bf7259	Vendor (CNA)
Linux Linux	768f25613a9fe6766d15a4a72979657adfc1c6d8	Vendor (CNA)
Linux Linux	a75281626fc8fa6dc6c9cc314ee423e8bc45203b	Vendor (CNA)
Linux Linux	d97fc1b29513010b60fde874c7f0ba816744e18c	Vendor (CNA)
Linux Linux	e14a1148f02e8cf1ca380d57e4b95ca36c97f45d	Vendor (CNA)
debian:linux	6.1.170-1 · Debian:12	Package 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.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

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).