Is there a patch available for CVE-2026-98481?

Yes, a patch is available for CVE-2026-98481. Update the affected software to the latest version immediately.

Linux CVE-2026-98481

EUVD-2026-103721

2026-10-18 Linux

GHSA-76wj-ccjf-8q4p

Information Disclosure Linux

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Monitor Track and reassess. Why: No CVSS yet + weak signal (CWE or non-zero EPSS).

Patch available 0.2% exploitation probability (EPSS)

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AnalysisCVE.org

In the Linux kernel, the following vulnerability has been resolved:

nfc: port100: reject frames whose declared length exceeds the received data

port100_recv_response() passes the URB transfer buffer to port100_rx_frame_is_valid(), which checksums le16_to_cpu(frame->datalen) bytes of frame->data. datalen is a 16-bit field supplied by the device and is never checked against the number of bytes actually received (urb->actual_length), so a device reporting a datalen larger than the received frame makes port100_data_checksum() read out of bounds past the transfer buffer.

Reject a response whose declared frame size does not fit the received length before validating it.

Found by 0sec (https://0sec.ai) using automated source analysis; the missing bound is evident from source. Compile-tested.

Affected VersionsENISA

Linux 3.13

Linux 562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06 <092c6a605cbd6414ef499834c2e0da69c2c3388e

Linux patch: 7.3-rc5

Linux patch: 0

Linux patch: 6.6.158

Linux patch: 6.1.189

Linux 562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06 <144ad477c381e2c592b64898d04ab4ce03b32861

Linux patch: 6.18.55

Linux 562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06 <9e8df087826b9999d1b83b06f5d85675d5a69c9e

Linux patch: 5.15.222

Linux 562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06 <0d482995f0cdd0302450aa300c684c642d8ab31f

Linux 562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06 <035056e07ea65be670284246d9bc62f2f00ff4a3

Linux patch: 6.12.112

Linux patch: 5.10.271

Linux 562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06 <14b1467cfc6630583650f33538174c5a1ec685ab

Linux 562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06 <db66a30588630c7de30ef033f00daddef69f6ad9

Linux 562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06 <e4da1452e10c6472a4bac48dc2f6a35fff1fcd69

Linux patch: 7.2.9

Affected Packages

euvd linux no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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Exploit and PoC references, threat intelligence from 22 sources

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Lifecycle Timeline

Patch available

Oct 18, 2026 - 16:02 EUVD

CVE Published

Oct 18, 2026 - 15:15 cve.org

UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score

0.2%

Top 89% exploitable

Data Quality

3 sources

Confidence: Low

EUVD

CVE.org

EPSS MSRC

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity Not scored yet

CISA KEV No

Public POC No

EPSS 0.2%

Patch available Yes

Active threat No

Deciding rule

No CVSS yet + weak signal (CWE or non-zero EPSS)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.