CVE-2022-34402Network attack vector

Administrator-triggered UI denial via inefficient regex

Published Oct 10, 2022 · Updated Sep 16, 2024

Regular expression denial of service in Dell Wyse ThinOS 9.3.1129 and earlier allows remote authenticated users to interrupt the UI. Dell identifies the locus only as the UI and does not disclose the vulnerable expression, input field, or matching operation. Administrator privileges are required, and Dell does not state whether successful exploitation causes a hang, crash, or other form of interruption.

CVSS severity6.8
Medium
EPSS probability0.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Regular expression denial of service in Dell Wyse ThinOS 9.3.1129 and earlier allows remote authenticated users to interrupt the UI. Dell identifies the locus only as the UI and does not disclose the vulnerable expression, input field, or matching operation. Administrator privileges are required, and Dell does not state whether successful exploitation causes a hang, crash, or other form of interruption.

The record

CVE
CVE-2022-34402
Published
Oct 10, 2022
Updated
Sep 16, 2024
Vendor
Dell Technologies
Product
Dell ThinOS
Classifications
CWE-1333, T1499
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Oct 10, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <ThinOS 2208

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Dell Technologies · Dell ThinOSversion=unspecified <ThinOS 2208

Published CVSS scores

6.8DellCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H
4.9NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-1333Inefficient Regular Expression Complexity
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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