Linux Kernel up to 7.1.3 rtw89 state issue

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k1.55-

Summaryinfo

A vulnerability has been found in Linux Kernel up to 7.1.3 and classified as critical. Affected by this vulnerability is an unknown functionality of the component rtw89. Performing a manipulation results in state issue. This vulnerability is known as CVE-2026-64506. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Linux Kernel up to 7.1.3. This affects an unknown part of the component rtw89. The manipulation with an unknown input leads to a state issue vulnerability. CWE is classifying the issue as CWE-371. This is going to have an impact on availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: wifi: rtw89: correct drop logic for malformed AMPDU frames The previous commit aims to fix issue caused by malformed AMPDU frames. But the drop logic fails to deal with the first AMPDU packet paired with certain range of sequence number, and leads to unexpected packet drop. It is more likely to encounter this failure when there are busy traffic during rekey process and could lead to disconnection from the AP. Fix this by adding a initial state judgement and only reset status during pairwise rekey.

It is possible to read the advisory at git.kernel.org. This vulnerability is uniquely identified as CVE-2026-64506 since 07/19/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/26/2026).

Upgrading to version 7.1.4 or 7.2-rc1 eliminates this vulnerability. Applying the patch 994994cfadaf1fd362dea9b8d9d633f85dc1b3c3/63ccdfac8677387dfdbd9d4336089e9823280704 is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-48850). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Version

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: State issue
CWE: CWE-371
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 7.1.4/7.2-rc1
Patch: 994994cfadaf1fd362dea9b8d9d633f85dc1b3c3/63ccdfac8677387dfdbd9d4336089e9823280704

Timelineinfo

07/19/2026 CVE reserved
07/25/2026 +6 days Advisory disclosed
07/25/2026 +0 days VulDB entry created
07/26/2026 +1 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-64506 (🔒)
GCVE (CVE): GCVE-0-2026-64506
GCVE (VulDB): GCVE-100-383295
EUVD: 🔒

Entryinfo

Created: 07/25/2026 19:18
Updated: 07/26/2026 03:48
Changes: 07/25/2026 19:18 (58), 07/26/2026 03:48 (1)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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