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CVE.org (no NVD analysis yet)· CNA Linux

CVE-2026-98697: USB: serial: fix dynamic id driver deregistration race

Noroxi assessment

Priority: Monitor (action score 0/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.17% (FIRST EPSS).
  • Fixed version: Linux Linux 025e149e471bfa07622b8b77050facfc9b7704b4, 29172161236154f362e35694864cacbdeb07d060, 380f57cd58e26e0f3687451196ec446c473c52d9; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes; azl3 kernel 6.6.159.1-1 on Azure Linux 3.0 6.6.161.1-1.

Low priority for now. Upgrade to Linux Linux 025e149e471bfa07622b8b77050facfc9b7704b4, 29172161236154f362e35694864cacbdeb07d060, 380f57cd58e26e0f3687451196ec446c473c52d9; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 Release Notes; azl3 kernel 6.6.159.1-1 on Azure Linux 3.0 6.6.161.1-1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: USB: serial: fix dynamic id driver deregistration race Only free the dynamic ids after having deregistered the driver and removed the "new_id" attribute to avoid leaking any id added by a racing write to the attribute.

—No exploit Fix available
Published
Oct 18, 2026
Updated
Oct 30, 2026
EPSS
0.1% · 7th percentile
CWE
—

Report tools

JSON

Action score

0

Monitor

Low priority for now.

CVSS
0 / 40 · —
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-98697

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 2.6.21affected
    • 93bacefc4cc0b53e1cb6a336d43847154fdf6886 and later · before e8dd520070e1d89ab2fabdd514dd2b4024fabc1faffected · git
    • 93bacefc4cc0b53e1cb6a336d43847154fdf6886 and later · before 025e149e471bfa07622b8b77050facfc9b7704b4affected · git
    • 93bacefc4cc0b53e1cb6a336d43847154fdf6886 and later · before 5f83c41fac8f4048f2ded4ffdd74907888a3bb91affected · git
    • 93bacefc4cc0b53e1cb6a336d43847154fdf6886 and later · before 29172161236154f362e35694864cacbdeb07d060affected · git
    • 93bacefc4cc0b53e1cb6a336d43847154fdf6886 and later · before ebd8fcaaacb66c15ae7e19d14619abe3762e0701affected · git
    • 93bacefc4cc0b53e1cb6a336d43847154fdf6886 and later · before 4d6da6867b4ac6468d634a0dd3c35dfc0dc8af81affected · git
    • 93bacefc4cc0b53e1cb6a336d43847154fdf6886 and later · before 380f57cd58e26e0f3687451196ec446c473c52d9affected · git
    • 93bacefc4cc0b53e1cb6a336d43847154fdf6886 and later · before 63594e8ffe097bc0b7639936f33799a7653dded2affected · git
    • before 2.6.21not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxfrom 0—
Debian:12linux-6.12before 6.12.113-1~deb12u16.12.113-1~deb12u1
Debian:13linuxbefore 6.12.113-16.12.113-1
Debian:14linuxbefore 7.2.10-17.2.10-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
    40Plan
  • CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
    40Plan
  • CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
    40Plan

Published before and after this one in the same product

  • ← EarlierCVE-2026-98695Oct 18, 2026 · USB: serial: fix ioctl hangup race
    0Monitor
  • ← EarlierCVE-2026-98696Oct 18, 2026 · USB: serial: fix driver deregistration order
    0Monitor
  • Later →CVE-2026-98698Oct 18, 2026 · wifi: mac80211: handle empty FILS association request payload
    0Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux025e149e471bfa07622b8b77050facfc9b7704b4Vendor (CNA)
Linux Linux29172161236154f362e35694864cacbdeb07d060Vendor (CNA)
Linux Linux380f57cd58e26e0f3687451196ec446c473c52d9Vendor (CNA)
Linux Linux4d6da6867b4ac6468d634a0dd3c35dfc0dc8af81Vendor (CNA)
Linux Linux5f83c41fac8f4048f2ded4ffdd74907888a3bb91Vendor (CNA)
Linux Linux63594e8ffe097bc0b7639936f33799a7653dded2Vendor (CNA)
Linux Linuxe8dd520070e1d89ab2fabdd514dd2b4024fabc1fVendor (CNA)
Linux Linuxebd8fcaaacb66c15ae7e19d14619abe3762e0701Vendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.0Release NotesMicrosoft (MSRC)
azl3 kernel 6.6.159.1-1 on Azure Linux 3.06.6.161.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.12.113-1 · Debian:13Package registry (OSV)
debian:linux-6.126.12.113-1~deb12u1 · Debian:12Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. Fix recordedsame day
  3. TodayNov 7, 2026+20 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

No CVSS vector for this record, so attack conditions can't be derived.

Weakness class (CWE)

—

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Exploit maturity— → none
  2. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (7 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records