LowCVE-2026-98697

Linux Kernel: security vulnerability (CVE-2026-98697)

Published 18.10.2026Last modified 30.10.2026Sources: Debian LTS, BSI, Msrc Update Guide, CVE.org

What is affected, what to do

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.

Update Linux Kernel to version 5.10.273, Linux Kernel to version 5.15.224, Linux Kernel to version 6.1.191.

Affected: Linux Kernel lt 2.6.21..5.10.273
Linux Kernel lt 5.11..5.15.224
Linux Kernel lt 5.16..6.1.191
Linux Kernel lt 6.2..6.6.160
Linux Kernel lt 6.7..6.12.113
Linux Kernel lt 6.13..6.18.56
Linux Kernel lt 6.19..7.2.10
Fixed in: Linux Kernel 5.10.273
Linux Kernel 5.15.224
Linux Kernel 6.1.191
Linux Kernel 6.6.160
Linux Kernel 6.12.113
Linux Kernel 6.18.56
Linux Kernel 7.2.10
Linux Kernel 7.3

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Metrics

1.9

Priority

XIEM Effective CVSS: highest available CVSS rating from NVD and vendor data.

Source: Vendor (CNA), CVSS v3

1.9

CVSS v3

Severity Low on the scale from 0 to 10.

Source: Debian LTS, BSI, Msrc Update Guide, CVE.org

0.2 %

EPSS score

Low — model estimates < 1% exploitation likelihood.

Source: FIRST EPSS, percentile 7.2

Show all metrics

Severity: Low
Priority (0–325) The priority score is a consolidated metric that condenses several individual signals into a single, action-guiding ranking: technical severity (CVSS), exploitation likelihood (EPSS), known-exploited status (KEV) and the context of the affected asset. The aim is to answer the only truly important question in vulnerability management: what first? Read in glossary: 39.91 Methodology
Exploit maturity An exploit is code or a technique that specifically uses a concrete vulnerability to force unintended behaviour — such as executing code or escalating privileges. It is the tool that turns a theoretical flaw into a practical attack. Read in glossary: no public PoC known
XIEM Effective CVSS XIEM® is the tiered managed-security operating model from NEOSEC and a registered trademark of NEOSEC GmbH. It extends classic SIEM — the central collection, normalisation and correlation of security-relevant events — with endpoint forensics, network visibility and deception technology, and consolidates them into three building tiers: Sentry, Orchestrate and Command. Read in glossary: 1.9 Methodology
CVSS v3 CVSS is the globally established, open standard for assessing the technical severity of a vulnerability on a scale from 0 to 10. It describes how easily a flaw can be exploited and what damage it can cause — but not how likely its actual exploitation is. CVSS and the complementary EPSS deliberately answer different questions. Read in glossary: 1.9
EPSS score The EPSS score is the absolute model output for an individual vulnerability: the estimated probability of real-world exploitation within the next 30 days, expressed as a value between 0 and 1 (i.e. 0 % to 100 %). A score of 0.42 means „the model estimates a 42 % chance of real-world exploitation within 30 days“. Read in glossary: 0.2 %; Low — model estimates < 1% exploitation likelihood.
EPSS percentile The EPSS percentile is the relative position of a vulnerability within all EPSS-scored CVEs, expressed as a value between 0 and 1. A percentile of 0.90 means „this CVE has a higher EPSS score than 90 % of all other scored CVEs“. Unlike the EPSS score, it is not a probability — but a positioning within a ranking. Read in glossary: 7.2; Low — this CVE sits in the lower 10% of all CVEs scored today.
KEV status The KEV catalogue is a list maintained by the US authority CISA of vulnerabilities for which active exploitation in the wild has been confirmed. It answers not the question „how severe?“ but „is it already being attacked?“ — thereby sharply prioritising patching. Read in glossary: —
Published: 18.10.2026

Detection rules

No NEOSEC detection rule is available for this vulnerability yet.

Classification under NIS2 and CRA

Rule-based classification from exploitation status and severity. It does not replace a case-by-case assessment.

NIS2 NIS2 is EU Directive (EU) 2022/2555 to raise the level of cybersecurity across the Union. It substantially broadens obligations compared with the first NIS directive: more sectors, mandatory risk management, staged reporting duties and personal accountability of senior management. Read in glossary: Handle the vulnerability in regular vulnerability handling under Art. 21(2)(e) NIS2.
CRA The CRA is EU Regulation (EU) 2024/2847 setting horizontal cybersecurity requirements for „products with digital elements“ — from industrial controllers and software to connected consumer devices. For the first time manufacturers must ensure security across the entire product lifecycle, handle vulnerabilities and provide security updates. Read in glossary: From 11.12.2027, Annex I Part II CRA requires manufacturers of affected products with digital elements to handle vulnerabilities without delay and provide security updates.
ISO/IEC 27001 ISO/IEC 27001 is the internationally leading standard for an information security management system (ISMS). It describes a risk-based, process-oriented framework to systematically plan, implement, review and improve information security. Read in glossary: Control A.8.8, management of technical vulnerabilities: assess relevance to your systems, plan remediation and keep evidence.

Description

Source: Debian LTS Advisories, BSI WID Portal, BSI CSAF, Microsoft Security Update Guide, cvelistv5, NVD (NIST)

Affected products

The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

Affected products
		Affected versions	Fixed in
Linux	Linux	`5.11 – < 5.15.224` `5.16 – < 6.1.191` `6.13 – < 6.18.56` `6.19 – < 7.2.10` `6.7 – < 6.12.113` `2.6.21 – < 5.10.273` `—` `6.2 – < 6.6.160`	`5.15.224` `6.1.191` `6.18.56` `7.2.10` `6.12.113` `5.10.273` `7.3` `6.6.160`

Vendors and products

Affected operating systems

Affected operating systems

Linux	debian	linux-6.12	`bookworm`

References & sources

git.kernel.orgstable/c/380f57cd58e26e0f3687451196ec446c473c52d9
git.kernel.orgstable/c/4d6da6867b4ac6468d634a0dd3c35dfc0dc8af81
git.kernel.orgstable/c/63594e8ffe097bc0b7639936f33799a7653dded2
git.kernel.orgstable/c/ebd8fcaaacb66c15ae7e19d14619abe3762e0701
git.kernel.orgstable/c/29172161236154f362e35694864cacbdeb07d060
git.kernel.orgstable/c/025e149e471bfa07622b8b77050facfc9b7704b4
git.kernel.orgstable/c/5f83c41fac8f4048f2ded4ffdd74907888a3bb91
git.kernel.orgstable/c/e8dd520070e1d89ab2fabdd514dd2b4024fabc1f

Changes to this CVE

Who changed this CVE and when: NVD (analysis, affected products, CVSS), the CVE publisher (CNA) and additional providers such as CISA (ADP).

30.10.2026Record modifiedLinux

New references:

Show 4 original changes

Individual changes of this event as published by NVD
Type	Action	Before	After
Affected versions (publisher)	added	—	Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/98xxx/CVE-2026-98697.json">CVE-2026-98697</a>
Reference	added	—	https://git.kernel.org/stable/c/025e149e471bfa07622b8b77050facfc9b7704b4
Reference	added	—	https://git.kernel.org/stable/c/5f83c41fac8f4048f2ded4ffdd74907888a3bb91
Reference	added	—	https://git.kernel.org/stable/c/e8dd520070e1d89ab2fabdd514dd2b4024fabc1f

Source identifier: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

21.10.2026Record modifiedLinux

New references:

https://git.kernel.org/stable/c/29172161236154f362e35694864cacbdeb07d060

Show 2 original changes

Individual changes of this event as published by NVD
Type	Action	Before	After
Affected versions (publisher)	added	—	Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/98xxx/CVE-2026-98697.json">CVE-2026-98697</a>
Reference	added	—	https://git.kernel.org/stable/c/29172161236154f362e35694864cacbdeb07d060

Source identifier: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

19.10.2026Record modifiedLinux

1 individual change: Affected versions (publisher)

Show the original change

Individual changes of this event as published by NVD
Type	Action	Before	After
Affected versions (publisher)	added	—	Affected value modified. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/98xxx/CVE-2026-98697.json">CVE-2026-98697</a>

Source identifier: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

18.10.2026ReceivedLinux

Description added or changed

New references:

Show 6 original changes

Individual changes of this event as published by NVD
Type	Action	Before	After
Description	added	—	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.
Affected versions (publisher)	added	—	New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/98xxx/CVE-2026-98697.json">CVE-2026-98697</a>
Reference	added	—	https://git.kernel.org/stable/c/380f57cd58e26e0f3687451196ec446c473c52d9
Reference	added	—	https://git.kernel.org/stable/c/4d6da6867b4ac6468d634a0dd3c35dfc0dc8af81
Reference	added	—	https://git.kernel.org/stable/c/63594e8ffe097bc0b7639936f33799a7653dded2
Reference	added	—	https://git.kernel.org/stable/c/ebd8fcaaacb66c15ae7e19d14619abe3762e0701

Source identifier: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

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<a href="https://intel.neosec.eu/en/cve/CVE-2026-98697"><img src="https://intel.neosec.eu/badge/cve/CVE-2026-98697.svg?lang=en" alt="CVE-2026-98697 – NEOSEC Intel" height="20"></a>