Unknown

CVE-2026-93117 — usb: fix UAF when probe runs concurrent to dyn ID removal

In the Linux kernel, the following vulnerability has been resolved: usb: fix UAF when probe runs concurrent to dyn ID removal Dynamic IDs are only guaranteed to be valid when usb_dynids_lock is held, as remove_id_store can free the node. Thus, make a copy in usb_probe_interface. Clarify the documentation that the id parameter is only valid during the probe. USB serial has the same pattern, but it does not need fixing as the IDs cannot be removed via sysfs.

Published Sep 17, 2026 · Updated Oct 15, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP · CNA: Linux

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.2% (30-day exploitation probability)+1

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.21%

ahead of 10% of scored CVEs · Oct 16, 2026

Affects

Linux

CVSS base

—

Score not published yet.

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Linux Linux).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Linux	Linux	≥ 0c7a2b72746a96f999fd2728520d03d94879be69 and < 9b82ddf76827e2a8ff033a8131ecf24f2d6cae26≥ 0c7a2b72746a96f999fd2728520d03d94879be69 and < 44904468e58d3dc3a0229782acbeb9677b060541≥ 0c7a2b72746a96f999fd2728520d03d94879be69 and < 64320c6e721bdec4c43a789c866c8a099dd0c843≥ 0c7a2b72746a96f999fd2728520d03d94879be69 and < 7e795801295c84a6bbc10a3e7a4c99c50bfe45ac≥ 0c7a2b72746a96f999fd2728520d03d94879be69 and < e6a9c6b79b70046afdf5a1dbd03b1104536f30c0≥ 0c7a2b72746a96f999fd2728520d03d94879be69 and < ef8154d8b52d60338c1fd8d793cd8e891c604c14version 2.6.33	Vulnerable	CVE Program (cve.org) e CISA ADP

EPSS over time FIRST

Oct 15, 2026 → Oct 16, 2026 · 2 reading(s) · max 0.21%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Not enough vector or weakness data: use the affected application’s logs as a starting point.

application logs

Timeline

What happened to this CVE, newest first.

2026
Record published
Oct 15, 2026
Affected products added · linux/linux
Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
Source status changed · → Received
Oct 15, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 15, 2026 · NIST National Vulnerability Database
CVE published
Sep 17, 2026 · Linux

Source activity

Repeated readings are counted rather than listed.

1× Official description updated · Oct 15, 2026 – Oct 15, 2026

References

6 on the record

git.kernel.org/stable/c/7e795801295c84a6bbc10a3e7a4c99c50bfe45ac
NIST National Vulnerability Database
git.kernel.org/stable/c/64320c6e721bdec4c43a789c866c8a099dd0c843
NIST National Vulnerability Database
git.kernel.org/stable/c/e6a9c6b79b70046afdf5a1dbd03b1104536f30c0
NIST National Vulnerability Database
git.kernel.org/stable/c/ef8154d8b52d60338c1fd8d793cd8e891c604c14
NIST National Vulnerability Database
git.kernel.org/stable/c/44904468e58d3dc3a0229782acbeb9677b060541
NIST National Vulnerability Database
git.kernel.org/stable/c/9b82ddf76827e2a8ff033a8131ecf24f2d6cae26
NIST National Vulnerability Database

Elsewhere on this site

Linux
every CVE for this vendor

Related CVEs (same products)

Critical CVE-2026-99999 ipv4: validate checksum_start before completing checksum 3d
Unknown CVE-2026-98432 ipv4: free inet_opt and ireq_opt after an RCU grace period 3d
Unknown CVE-2026-98424 wifi: cfg80211: undo netns switch if renaming the wiphy fails 4d
Unknown CVE-2026-98425 wifi: mac80211: don't warn when an IBSS has no channel to scan 4d
Unknown CVE-2026-98426 wifi: mwifiex: fix IRQ leak using wrong index in MSI-X error path 4d
Unknown CVE-2026-98427 net/sched: codel: bound the dropping loop per dequeue call 4d

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No CVSS score published by NVD, the CNA, CISA or GitHub so far.
No fixed version, patch or mitigation documented.
No CISA SSVC assessment.
No CWE classification.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2026-93117 is "usb: fix UAF when probe runs concurrent to dyn ID removal", rated Unknown. It affects Linux (Linux); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. EPSS 0.21% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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