VulnerabilityPublished 25 Jul 2026Updated 6 Nov 2026

CVE-2026-64332: Linux kernel · USB: ulpi: fix memory leak on registration failure

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in e5493c9a98ffe083acf13ac064828ae598ba3c16 : update Linux kernel when convenient.

Data as of 6 Nov 2026, 17:19 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 e5493c9a98ffe083acf13ac064828ae598ba3c16, d5b32f36c50894ac2df8fa184e6f35f3a6665ecd, 88187a43135c79d0e43573b4d8f880bbb919eceb +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 ≥ 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f, < e5493c9a98ffe083acf13ac064828ae598ba3c16	Fixed in e5493c9a98ffe083acf13ac064828ae598ba3c16
LinuxLinux	Affected ≥ 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f, < d5b32f36c50894ac2df8fa184e6f35f3a6665ecd	Fixed in d5b32f36c50894ac2df8fa184e6f35f3a6665ecd
LinuxLinux	Affected ≥ 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f, < 88187a43135c79d0e43573b4d8f880bbb919eceb	Fixed in 88187a43135c79d0e43573b4d8f880bbb919eceb
LinuxLinux	Affected ≥ 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f, < 1967a7f0cd5c08eb479196daa5aaa4b7b7a7bd04	Fixed in 1967a7f0cd5c08eb479196daa5aaa4b7b7a7bd04
LinuxLinux	Affected ≥ 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f, < 691e61e5d4cfc5a1b061e937f8cbf2126bfc19a0	Fixed in 691e61e5d4cfc5a1b061e937f8cbf2126bfc19a0
LinuxLinux	Affected ≥ 289fcff4bcdb1dcc0ce8788b7ea0f58a9e4a495f, < 624c57147df1977e0d3da53f1da7117861b9cf19	Fixed in 624c57147df1977e0d3da53f1da7117861b9cf19

Description

In the Linux kernel, the following vulnerability has been resolved: USB: ulpi: fix memory leak on registration failure The allocated device name is never freed on early ULPI device registration failures. Fix this by initialising the device structure earlier and releasing the initial reference whenever registration fails.

References

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