CVE-2026-64506: Linux kernel · wifi: rtw89: correct drop logic for malformed AMPDU frames
Affects Linux kernelSource GCVE Database
Not known to be exploited.
Data as of 26 Oct 2026, 14:05 UTC
Rated by Threat Radar · No CVSS score from NVD or the CNA
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 12% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Exploitation evidence
Disclosed: evidence found.
CVE published 25 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
AI-suggested
A fix for this vulnerability has been implemented in the Linux kernel by correcting the drop logic in the rtw89 driver. Users should apply the official Linux kernel updates that include this correction. Patch status is not explicitly confirmed in the provided data; therefore, check the vendor or Linux kernel advisory for the current remediation guidance.
Description
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.
References
- nvd.nist.gov/vuln/detail/CVE-2026-64506 (opens in a new tab)
- git.kernel.org/stable/c/63ccdfac8677387dfdbd9d4336089e9823280704 (opens in a new tab)
- git.kernel.org/stable/c/994994cfadaf1fd362dea9b8d9d633f85dc1b3c3 (opens in a new tab)
- ubuntu.com/security/CVE-2026-64506 (opens in a new tab)
- cve.org/CVERecord?id=CVE-2026-64506 (opens in a new tab)
- git.kernel.org/linus/63ccdfac8677387dfdbd9d4336089e9823280704 (opens in a new tab)