Is there a patch available for CVE-2026-99022?

Yes, a patch is available for CVE-2026-99022. Update the affected software to the latest version immediately.

Linux CVE-2026-99022

EUVD-2026-108816

2026-10-23 Linux

GHSA-668q-74cv-frqc

Information Disclosure Linux

View

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

Patch available 0.2% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisCVE.org

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

regulator: ltc3676: don't read the write-only HRST and CLIRQ registers

HRST (0x1e) and CLIRQ (0x1f) are write-only command strobes. Writing HRST triggers a hard reset of the chip and writing CLIRQ clears the interrupt; reading them returns nothing useful, and the read itself fires the command.

The result is that a plain register dump resets the board:

cat /sys/kernel/debug/regmap/2-003c/registers

walks every readable register, hits HRST, and the board reboots.

Split the callback back in two so HRST and CLIRQ stay writable but are no longer readable. The readable range is left unchanged (LTC3676_BUCK1 ... LTC3676_IRQSTAT).

Affected VersionsENISA

Linux 37b918a034feda1b1ef404acf003812f37ab8da2 <fd376d83741118e0212f0da985889c1a98d9c827

Linux 37b918a034feda1b1ef404acf003812f37ab8da2 <28c2388ee24cdbefbcc458fa41ef7bffaaa1cc83

Linux patch: 0

Linux 37b918a034feda1b1ef404acf003812f37ab8da2 <ca5d85335a8fa6e87b45629f1a07b412482cab17

Linux patch: 6.18.57

Linux patch: 7.2.11

Linux patch: 6.6.160

Linux patch: 6.12.113

Linux 37b918a034feda1b1ef404acf003812f37ab8da2 <199a62d70314d21f06a9a6faaa3ef54d0404910c

Linux patch: 7.3

Linux 37b918a034feda1b1ef404acf003812f37ab8da2 <1fb0d58fd363b439b4faf08a16ee6ae38b575cd4

Linux 4.9

Affected Packages

euvd linux no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Know when the next one hits your stack

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

Lifecycle Timeline

Patch available

Oct 23, 2026 - 13:17 EUVD

CVE Published

Oct 23, 2026 - 12:21 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.