---
title: "CVE-2026-90016: Linux kernel rtl8723bs - Out-of-Bounds Read"
description: "Linux kernel staging rtl8723bs contains an out-of-bounds read caused by missing bounds check in rtw_restruct_wmm_ie() function while parsing WMM IE, letting attackers trigger OOB read via crafted association/scan data, exploit requires attacker to provide crafted IE buffer."
url: https://panop.io/threat-heartbeat/CVE-2026-90016/
---

# CVE-2026-90016 Linux kernel rtl8723bs - Out-of-Bounds Read

Linux kernel staging rtl8723bs contains an out-of-bounds read caused by missing bounds check in rtw\_restruct\_wmm\_ie() function while parsing WMM IE, letting attackers trigger OOB read via crafted association/scan data, exploit requires attacker to provide crafted IE buffer.

CVSS base score 7.1 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

EPSS

0.40% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-90016)

## Details

Type

Out-of-Bounds Read

Impact

Information Disclosure, Denial Of Service

CVSS vector

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

Published

16 September 2026

Updated

15 October 2026

## Vendor fix

Update to the latest Linux kernel version containing the fix for staging rtl8723bs OOB read.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-90016](https://nvd.nist.gov/vuln/detail/CVE-2026-90016)
- [https://git.kernel.org/stable/c/28a289beaf226b30b1e6e7d7b1a2946fe2d6e852](https://git.kernel.org/stable/c/28a289beaf226b30b1e6e7d7b1a2946fe2d6e852)
- [https://git.kernel.org/stable/c/4420cc71841b50e31a7868ef7acb011c0e08d294](https://git.kernel.org/stable/c/4420cc71841b50e31a7868ef7acb011c0e08d294)
- [https://git.kernel.org/stable/c/fd19b8895f8a91087e8a62f1e27b128025dabb95](https://git.kernel.org/stable/c/fd19b8895f8a91087e8a62f1e27b128025dabb95)
- [https://git.kernel.org/stable/c/e63b72c5d7336981dfc05e5cb92becff29dfea00](https://git.kernel.org/stable/c/e63b72c5d7336981dfc05e5cb92becff29dfea00)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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