CVE-2026-14256 — Out-of-bounds Read in Lenovo 100w Gen 4 Laptop (Lenovo) ELAN TrackPoint Driver for Windows 11 (Version 22H2 or later) - Lenovo 100w Gen 4, 300w Yoga Gen 4, 500w Yoga Gen 4

Triage

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

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

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.

1. Identify exposed assets running the affected vendor/product/version combinations (Lenovo 100w Gen 4 Laptop (Lenovo) ELAN TrackPoint Driver for Windows 11 (Version 22H2 or later) - Lenovo 100w Gen 4, 300w Yoga Gen 4, 500w Yoga Gen 4, Lenovo 100w Gen 5 (Type 83LD, 83LE) Laptop (Lenovo) ELAN TrackPoint Driver for Windows 11 (Version 23H2 or later) - Lenovo 100w Gen 5, 300w 2-in-1 Gen 5, 500w 2-in-1 G, Lenovo 11e Yoga Gen 6 (Type 20SE, 20SF) Laptop (ThinkPad) Elan ClickPad Driver for Windows 11 (Version 21H2 or later), 10 (Version 1809 or later) - ThinkPad Yoga 11e 6…).
2. No fix documented in the sources: reduce exposure and monitor the vendor advisory.
3. Search available logs for exploit probes matching the vulnerability class (memory corruption), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-125 · Out-of-bounds Read

Other CVEs with this weakness →

Detection

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

• Local/physical vector: focus on endpoint telemetry (EDR) from affected hosts.
• Correlate service crashes/restarts with inbound traffic; repeated crashes may indicate attempts.

Timeline

What happened to this CVE, newest first.

• 2026
• Affected products added · lenovo/e16 gen 2 (type 21m5, 21m6) laptops (thinkpad) elan trackpoint device driver for windows 11 (version 23h2 or late
  Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
• SSVC assessment updated
  Oct 15, 2026 · CVE Program (cve.org) e CISA ADP
• Record published
  Oct 15, 2026
• CVSS changed · 4.7
  Oct 15, 2026 · NIST National Vulnerability Database
• Source status changed · → Awaiting Analysis
  Oct 15, 2026 · NIST National Vulnerability Database
• Record created in this database
  Oct 15, 2026 · NIST National Vulnerability Database
• CVE published
  Aug 13, 2026 · lenovo

Source activity

Repeated readings are counted rather than listed.

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

References

1 on the record

• support.lenovo.com/us/en/product_security/LEN-213604
  vendor-advisory, NIST National Vulnerability Database

Elsewhere on this site

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 fixed version, patch or mitigation documented.
• 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-2026-14256 is "Out-of-bounds Read in Lenovo 100w Gen 4 Laptop (Lenovo) ELAN TrackPoint Driver for Windows 11 (Version 22H2 or later) - Lenovo 100w Gen 4, 300w Yoga Gen 4, 500w Yoga Gen 4", rated Medium. It affects 100w Gen 4 Laptop (Lenovo) ELAN TrackPoint Driver for Windows 11 (Version 22H2 or later) - Lenovo 100w Gen 4, 300w Yoga Gen 4, 500w Yoga Gen 4 (Lenovo); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 4.7 describes technical severity. EPSS 0.11% 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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