CVE-2023-34429Network attack vector

Service interruption via forged JWT token

Published Jul 19, 2023 · Updated Oct 28, 2024

Improper JWT handling in Weintek Weincloud 0.13.6 and earlier allows remote attackers to interrupt the cloud service via a forged token. The account API improperly processes the token, but Weintek and CISA have not disclosed the specific structural parsing error. No authentication or user interaction is required, and the reported consequence is limited to loss of service availability.

CVSS severity7.5
High
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper JWT handling in Weintek Weincloud 0.13.6 and earlier allows remote attackers to interrupt the cloud service via a forged token. The account API improperly processes the token, but Weintek and CISA have not disclosed the specific structural parsing error. No authentication or user interaction is required, and the reported consequence is limited to loss of service availability.

The record

CVE
CVE-2023-34429
Published
Jul 19, 2023
Updated
Oct 28, 2024
Vendor
Weintek
Product
Weincloud
Classifications
CWE-237, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 19, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 28, 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=0 <=0.13.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Weintek · Weincloudversion=0 <=0.13.6

Published CVSS scores

7.5ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-237Improper Handling of Structural Elements
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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