VulnerabilityPublished 18 Oct 2026Updated 21 Oct 2026

CVE-2026-98761: Linux kernel · usb: typec: tcpm: recover after failure to start the frs ams

Source GCVE Database

Authoritative record:CVE-2026-98761

Not known to be exploited · fixed in d6b0cce612636f79f2cf0652fce40a0cbff7f0ed : update Linux kernel when convenient.

Data as of 26 Oct 2026, 17:16 UTC

Severity

Medium

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.1% chance of exploitation in 30 days – higher than 5% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in d6b0cce612636f79f2cf0652fce40a0cbff7f0ed, b2ed8643face247e513fad12e193378ba67a61a1, ae8aae45a39fcf2c64813652fcb062eace220712 +2

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-fcv9-h4wq-59j8

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 0908c5aca31eb5e0c72d7a5dba422629b88e877d, < d6b0cce612636f79f2cf0652fce40a0cbff7f0ed	Fixed in d6b0cce612636f79f2cf0652fce40a0cbff7f0ed
LinuxLinux	Affected ≥ 0908c5aca31eb5e0c72d7a5dba422629b88e877d, < b2ed8643face247e513fad12e193378ba67a61a1	Fixed in b2ed8643face247e513fad12e193378ba67a61a1
LinuxLinux	Affected ≥ 0908c5aca31eb5e0c72d7a5dba422629b88e877d, < ae8aae45a39fcf2c64813652fcb062eace220712	Fixed in ae8aae45a39fcf2c64813652fcb062eace220712
LinuxLinux	Affected ≥ 0908c5aca31eb5e0c72d7a5dba422629b88e877d, < 90156585765b29304f07b0e4a1c56a969876fcfc	Fixed in 90156585765b29304f07b0e4a1c56a969876fcfc
LinuxLinux	Affected ≥ 0908c5aca31eb5e0c72d7a5dba422629b88e877d, < 184d842121e7d1fbc3a81895f36f72fa27444163	Fixed in 184d842121e7d1fbc3a81895f36f72fa27444163
LinuxLinux	Affected =5.12	Fixed in–

AI-suggested

A fix has been implemented in the Linux kernel to reset the port and initiate error recovery when the TCPM fails to start the FAST_ROLE_SWAP AMS. Users should update to the fixed Linux kernel version containing this patch. No additional mitigation is required beyond applying the official kernel update.

Description

A vulnerability in the Linux kernel's USB Type-C TCPM driver was resolved by improving recovery after failure to start the FAST_ROLE_SWAP (FRS) Alternate Mode State (AMS). The issue involved the port failing to reset properly when the FRS AMS failed to start, causing VBUS power to remain sourced incorrectly. This could occur when some cables incorrectly signal an FRS during disconnection, potentially leaving the port in an invalid state with VBUS still on.

References

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