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

CVE-2026-98501: HID: alps: fix use-after-free on input2 registration failure

Noroxi assessment

Priority: Monitor (action score 28/100)

  • 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: 0.25% (FIRST EPSS).
  • Someone on the same network segment can trigger it. No account or password is required. A user must open a link or visit a page. Special conditions such as timing or configuration are required.
  • Fixed version: Linux Linux 2e55d76e6e8a756f6d87c241de975599f82b02fa, 443f6b93442b10b972a16f57ceaaea75b77892b6, 47e5e177e9e4e10da6f2759d5ce8d049e33efdc4; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.159.1-1.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 2e55d76e6e8a756f6d87c241de975599f82b02fa, 443f6b93442b10b972a16f57ceaaea75b77892b6, 47e5e177e9e4e10da6f2759d5ce8d049e33efdc4; azl3 kernel 6.6.157.1-1 on Azure Linux 3.0 6.6.159.1-1 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: HID: alps: fix use-after-free on input2 registration failure alps_input_configured() stores data->input2 before calling input_register_device(). If registration fails, input_free_device() frees the input device but data->input2 still points to the freed memory. alps_input_configured() calls hid_hw_open() before allocating input2, so URBs are already active and raw_event can fire during the failure window. A U1_SP_ABSOLUTE_REPORT_ID report arriving then causes u1_raw_event() to dereference the freed data->input2 -> use-after-free. Fix by only storing input2 into drvdata after successful registration and adding a NULL guard in the raw_event path.

HighCVSS 7.1 · v3.1—No exploit Fix available
Published
Oct 18, 2026
Updated
Oct 24, 2026
EPSS
0.2% · 17th percentile
CWE
—

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CNA vs NVD score

NVD
—
CNA · Linux
7.1
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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

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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

    • 4.8affected
    • 2562756dde550901c224e3805102bdfc17e7d13a and later · before 64f824dccfd316fd3db8ea1cc4e8a76ad6a02740affected · git
    • 2562756dde550901c224e3805102bdfc17e7d13a and later · before 2e55d76e6e8a756f6d87c241de975599f82b02faaffected · git
    • 2562756dde550901c224e3805102bdfc17e7d13a and later · before ef8ca5bb4c8b9696f38b1bebce1c851baa02b77baffected · git
    • 2562756dde550901c224e3805102bdfc17e7d13a and later · before 5a8ad63158165bacd6a1d7420e0fe5364c913b06affected · git
    • 2562756dde550901c224e3805102bdfc17e7d13a and later · before 47e5e177e9e4e10da6f2759d5ce8d049e33efdc4affected · git
    • 2562756dde550901c224e3805102bdfc17e7d13a and later · before 925da1d2a24787f24872de13a4680437c54de179affected · git
    • 2562756dde550901c224e3805102bdfc17e7d13a and later · before 443f6b93442b10b972a16f57ceaaea75b77892b6affected · git
    • 2562756dde550901c224e3805102bdfc17e7d13a and later · before d3aba3442798ce4a4c8ce3104d7b286d61e605f9affected · git
    • before 4.8not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.190-16.1.190-1
Debian:12linux-6.12before 6.12.113-1~deb12u16.12.113-1~deb12u1
Debian:13linuxbefore 6.12.113-16.12.113-1
Debian:14linuxbefore 7.2.9-17.2.9-1

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-2026-98499Oct 18, 2026 · HID: wacom: fix OOB read in wacom_wac_pen_serial_enforce()
    32Monitor
  • ← EarlierCVE-2026-98500Oct 18, 2026 · HID: hid-oxp: use cancel_delayed_work_sync() in remove
    0Monitor
  • Later →CVE-2026-98502Oct 18, 2026 · HID: alps: unregister DualPoint Stick input device on remove
    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 Linux2e55d76e6e8a756f6d87c241de975599f82b02faVendor (CNA)
Linux Linux443f6b93442b10b972a16f57ceaaea75b77892b6Vendor (CNA)
Linux Linux47e5e177e9e4e10da6f2759d5ce8d049e33efdc4Vendor (CNA)
Linux Linux5a8ad63158165bacd6a1d7420e0fe5364c913b06Vendor (CNA)
Linux Linux64f824dccfd316fd3db8ea1cc4e8a76ad6a02740Vendor (CNA)
Linux Linux925da1d2a24787f24872de13a4680437c54de179Vendor (CNA)
Linux Linuxd3aba3442798ce4a4c8ce3104d7b286d61e605f9Vendor (CNA)
Linux Linuxef8ca5bb4c8b9696f38b1bebce1c851baa02b77bVendor (CNA)
azl3 kernel 6.6.157.1-1 on Azure Linux 3.06.6.159.1-1 · Release NotesMicrosoft (MSRC)
debian:linux6.1.190-1 · Debian:12Package 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 1, 2026+14 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).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone on the same network segment can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • Special conditions such as timing or configuration are required.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Adjacent
Attack complexity
High
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

nvd-secondary

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. CVSS— → 7.1
  2. Severity— → high
  3. Exploit maturity— → none
  4. 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