VulnerabilityPublished 18 Oct 2026

CVE-2026-98759: Linux kernel · usb: typec: tipd: fix uninitialized typec_partner_desc in cd321x_update_work()

Source GCVE Database

Authoritative record:CVE-2026-98759· High

Not known to be exploited · fixed in 5414144e202a32437e3eb436cd3f5f00d79ad86e : patch Linux kernel soon.

Data as of 26 Oct 2026, 12:55 UTC

Severity

High

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 5414144e202a32437e3eb436cd3f5f00d79ad86e, 88c7e458af53ff781a3f1051708395892b325576, 75dc6cb377efd2f4428b7f76d3a590a0bbc10399

Exploitation evidence

Disclosed: evidence found.
CVE published 18 Oct 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.

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.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, 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.

ghsa-34hh-4678-7488

What to do

Upgrade Linux kernel to 5414144e202a32437e3eb436cd3f5f00d79ad86e, 88c7e458af53ff781a3f1051708395892b325576 or 75dc6cb377efd2f4428b7f76d3a590a0bbc10399.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 82432bbfb9e83b7e81d04660fe129b99a29b2ac2, < 5414144e202a32437e3eb436cd3f5f00d79ad86e	Fixed in 5414144e202a32437e3eb436cd3f5f00d79ad86e
LinuxLinux	Affected ≥ 82432bbfb9e83b7e81d04660fe129b99a29b2ac2, < 88c7e458af53ff781a3f1051708395892b325576	Fixed in 88c7e458af53ff781a3f1051708395892b325576
LinuxLinux	Affected ≥ 82432bbfb9e83b7e81d04660fe129b99a29b2ac2, < 75dc6cb377efd2f4428b7f76d3a590a0bbc10399	Fixed in 75dc6cb377efd2f4428b7f76d3a590a0bbc10399
LinuxLinux	Affected =6.18	Fixed in–

AI-suggested

A fix has been implemented that zero-initializes the typec_partner_desc structure in the cd321x_update_work() function. Users should apply the official Linux kernel updates that include this patch to remediate the vulnerability. Since this is a kernel-level issue, updating to a fixed kernel version is the recommended mitigation.

Description

A vulnerability in the Linux kernel's USB Type-C driver (tipd) was resolved by zero-initializing a stack-allocated typec_partner_desc structure in the cd321x_update_work() function. Previously, some fields were left uninitialized, potentially causing garbage function pointers to be stored and later invoked, and leaking stack data via sysfs. This could lead to undefined behavior when a USB device is linked to the port.

References

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