Is there a patch available for CVE-2026-98387?

Yes, a patch is available for CVE-2026-98387. Update the affected software to the latest version immediately.

Linux CVE-2026-98387

EUVD-2026-101036

2026-10-14 Linux

GHSA-qwcv-vwq2-whqp

Information Disclosure Linux

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Awaiting Data No severity or threat signals available yet. Label will update when CVSS score is published or threat intelligence arrives. 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:

s390/crypto: Fix skcipher_walk return code handling in aes_s390

The return codes from skcipher_walk_virt() were not properly checked before entering the processing loops in ecb_aes_crypt() and ctr_aes_crypt(). If skcipher_walk_virt() fails, the walk structure may be in an undefined state, and attempting to process data could lead to incorrect behavior or accessing uninitialized memory.

Add proper return code checking to ensure correct handling of the walk initialization and walk advance and eventually return to the caller with that return code.

Affected VersionsENISA

Linux 7988fb2c03c8cf9936f851ab19a6d21b3c3411c0 <35c3f97569306050e818fa18e17fa97c358f0f28

Linux patch: 6.12.111

Linux 7988fb2c03c8cf9936f851ab19a6d21b3c3411c0 <aea3e1588f08e381a7a57b2bf1a60cc2347904cd

Linux 5.5

Linux patch: 0

Linux patch: 7.3-rc3

Linux patch: 6.18.53

Linux 7988fb2c03c8cf9936f851ab19a6d21b3c3411c0 <89b58645646d1dac34162cc2597f42266bfbf930

Linux patch: 7.2.7

Linux 7988fb2c03c8cf9936f851ab19a6d21b3c3411c0 <15fa028589c3a2545f0bff355eff06d5844196bf

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 14, 2026 - 15:03 EUVD

CVE Published

Oct 14, 2026 - 13:25 cve.org

UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score

0.2%

Top 90% exploitable

Data Quality

2 sources

Confidence: Low

EUVD

CVE.org

EPSS

VulDB

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.