Is there a patch available for CVE-2026-98728?

Yes, a patch is available for CVE-2026-98728. Update the affected software to the latest version immediately.

Linux CVE-2026-98728

EUVD-2026-103813

2026-10-18 Linux

GHSA-m4p2-cqr5-x7cx

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:

tpm: fix off-by-four bounds check in tpm2_get_random()

When the response carries the TPM2_ST_SESSIONS tag, tpm2_get_random() skips the 4-byte parameter size field before locating the random data, but the bounds check still validates the response length against TPM_HEADER_SIZE. A truncated response can pass the check and make memcpy() read up to 4 bytes past the response end, so stale buffer contents end up in the caller's random bytes.

Fix this by checking the response length against 'offset', which already includes the skipped parameter size field.

Affected VersionsENISA

Linux 1b6d7f9eb150305dcb0da4f7101a8d30dcdf0497 <9b522400bf5c082feb9a0037a053ea822a2c7e4d

Linux patch: 0

Linux 1b6d7f9eb150305dcb0da4f7101a8d30dcdf0497 <42bb6216b861e892512128219ff23010d656ba14

Linux 1b6d7f9eb150305dcb0da4f7101a8d30dcdf0497 <e30a2406408d2df6d9cd48c2e59e913cf266a05a

Linux 1b6d7f9eb150305dcb0da4f7101a8d30dcdf0497 <be54101992c2c5218be0e0a87827ccc96e3089af

Linux patch: 6.12.113

Linux 6.10

Linux patch: 7.2.10

Linux patch: 6.18.56

Linux patch: 7.3-rc6

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 - 17:19 EUVD

CVE Published

Oct 18, 2026 - 15:47 cve.org

UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score

0.2%

Top 94% 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.