Is there a patch available for CVE-2026-98222?

Yes, a patch is available for CVE-2026-98222. Update the affected software to the latest version immediately.

Linux CVE-2026-98222

EUVD-2026-93150

2026-10-06 Linux

GHSA-8jg9-f732-244h

Buffer Overflow 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:

KEYS: encrypted: fix integer overflow of datablob_len

encrypted_key_alloc() stores datablob_len in a u16. It is computed from multiple string and payload lengths. If the result exceeds U16_MAX, the assignment truncates the allocation size. KASAN reports a 32760-byte slab-out-of-bounds write when __ekey_init() copies the master key description into the undersized buffer.

The total payload length stored in key->datalen is also a u16. Use check_add_overflow() to reject values that do not fit either destination, and use kzalloc_flex() for the flexible-array allocation.

Affected VersionsENISA

Linux 7e70cb4978507cf31d76b90e4cfb4c28cad87f0c <8697c431e297eb0d0ab13dda6bc172b48a34f05c

Linux patch: 7.2.8

Linux patch: 7.3-rc4

Linux patch: 6.18.54

Linux 7e70cb4978507cf31d76b90e4cfb4c28cad87f0c <1e720f63dbafc093a8f5d519f05b67724993edd4

Linux 7e70cb4978507cf31d76b90e4cfb4c28cad87f0c <a1a98eca102b1cbbc37ff9eaa197ae4e6a3ea4b0

Linux patch: 6.12.112

Linux patch: 0

Linux 2.6.38

Linux 7e70cb4978507cf31d76b90e4cfb4c28cad87f0c <cca38f2102a4cd35eda8d48950df4817b4b24757

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 06, 2026 - 10:02 EUVD

CVE Published

Oct 06, 2026 - 08:44 cve.org

UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score

0.2%

Top 90% exploitable

Threat Intel

1 sources

Data Quality

3 sources

Confidence: Low

EUVD

CVE.org

EPSS NEWS 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

Buffer Overflow HIGH

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.