VulnerabilityPublished 25 Jul 2026Updated 6 Nov 2026

CVE-2026-64342: Linux kernel · USB: iowarrior: fix use-after-free on disconnect

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in f328b0e9a0dbd162f5db1b83026b689f2fea2241 : update Linux kernel when convenient.

Data as of 6 Nov 2026, 17:04 UTC

Severity

Unrated

Rated by Threat Radar · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none

Exploitation: No evidence of active exploitation and no public proof of concept
Automatable: Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact: Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-06.

Patch

Available – fixed in f328b0e9a0dbd162f5db1b83026b689f2fea2241, e4596816984efc537e7c04c1af0c639394f967f7, d058d377291567b72aea33b017215cbfb383b0ad +5

Exploitation evidence

Disclosed: evidence found.
CVE published 25 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 6 Nov 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 946b960d13c15f050a3b848987aaca79f6a459b7, < f328b0e9a0dbd162f5db1b83026b689f2fea2241	Fixed in f328b0e9a0dbd162f5db1b83026b689f2fea2241
LinuxLinux	Affected ≥ 946b960d13c15f050a3b848987aaca79f6a459b7, < e4596816984efc537e7c04c1af0c639394f967f7	Fixed in e4596816984efc537e7c04c1af0c639394f967f7
LinuxLinux	Affected ≥ 946b960d13c15f050a3b848987aaca79f6a459b7, < d058d377291567b72aea33b017215cbfb383b0ad	Fixed in d058d377291567b72aea33b017215cbfb383b0ad
LinuxLinux	Affected ≥ 946b960d13c15f050a3b848987aaca79f6a459b7, < bc0e4f16c44e50daa0b1ea729934baa3b4815dee	Fixed in bc0e4f16c44e50daa0b1ea729934baa3b4815dee
LinuxLinux	Affected ≥ 946b960d13c15f050a3b848987aaca79f6a459b7, < b748f97aff339e7f08dca9cf38a05b980fb66fea	Fixed in b748f97aff339e7f08dca9cf38a05b980fb66fea
LinuxLinux	Affected ≥ 946b960d13c15f050a3b848987aaca79f6a459b7, < a7bbe946ca3a6eeb6f364d5e84b05e02c7c0d595	Fixed in a7bbe946ca3a6eeb6f364d5e84b05e02c7c0d595

Description

In the Linux kernel, the following vulnerability has been resolved: USB: iowarrior: fix use-after-free on disconnect Submitted write URBs are not stopped on close() and therefore need to be stopped unconditionally on disconnect() to avoid use-after-free in the completion handler.

References

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