VulnerabilityPublished 18 Oct 2026

CVE-2026-98696: Linux kernel · USB: serial: fix driver deregistration order

Source GCVE Database

Authoritative record:CVE-2026-98696

Not known to be exploited · fixed in e7ad832b1144df19cbbaaa655625c6f984e85b9f : update Linux kernel when convenient.

Data as of 26 Oct 2026, 13:47 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 e7ad832b1144df19cbbaaa655625c6f984e85b9f, a1aa474768f69ea3a70da523f00f74c264cfa10e, 646e5b28b4fdbc1b828a2398d6ced2c1dd308a46 +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-7jf2-f6fj-7mgx

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 765e0ba62613fb90f09c1b5926750df0aa56f349, < e7ad832b1144df19cbbaaa655625c6f984e85b9f	Fixed in e7ad832b1144df19cbbaaa655625c6f984e85b9f
LinuxLinux	Affected ≥ 765e0ba62613fb90f09c1b5926750df0aa56f349, < a1aa474768f69ea3a70da523f00f74c264cfa10e	Fixed in a1aa474768f69ea3a70da523f00f74c264cfa10e
LinuxLinux	Affected ≥ 765e0ba62613fb90f09c1b5926750df0aa56f349, < 646e5b28b4fdbc1b828a2398d6ced2c1dd308a46	Fixed in 646e5b28b4fdbc1b828a2398d6ced2c1dd308a46
LinuxLinux	Affected ≥ 765e0ba62613fb90f09c1b5926750df0aa56f349, < 428d479a0d31460fbf5969ab262ccd673f1fac01	Fixed in 428d479a0d31460fbf5969ab262ccd673f1fac01
LinuxLinux	Affected ≥ 765e0ba62613fb90f09c1b5926750df0aa56f349, < 9b085a06a0a411b0bcdf18b61c3ebf1be1c72ffe	Fixed in 9b085a06a0a411b0bcdf18b61c3ebf1be1c72ffe
LinuxLinux	Affected =3.4	Fixed in–

AI-suggested

A fix has been implemented to correct the driver deregistration order and to remove "new_id" attributes before deregistration to prevent new probes. Users should apply the official Linux kernel updates that include this fix. No additional mitigation steps are indicated beyond applying the patch.

Description

A vulnerability in the Linux kernel USB serial driver modules related to improper driver deregistration order has been resolved. The issue involves the sequence in which USB drivers and USB serial bus drivers are deregistered when unloading a driver module. Incorrect order can lead to use-after-free conditions in completion handlers accessing port data. Additionally, the removal of "new_id" attributes is necessary to prevent new IDs from triggering probes after deregistration.

References

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