CVE-2023-43850Public exploitNetwork attack vector

Authenticated web-interface interruption via malformed username

Published May 28, 2024 · Updated Mar 18, 2025

Improper input validation in ATEN PE6208 2.3.228 and 2.4.232 allows remote authenticated users to interrupt the web interface. The user-management endpoint accepts an opening angle bracket in a new username, after which user-list and log rendering fail while the associated records remain. A valid unprivileged session ID is required, and the documented interruption is limited to account administration and log viewing.

CVSS severity6.5
Medium
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in ATEN PE6208 2.3.228 and 2.4.232 allows remote authenticated users to interrupt the web interface. The user-management endpoint accepts an opening angle bracket in a new username, after which user-list and log rendering fail while the associated records remain. A valid unprivileged session ID is required, and the documented interruption is limited to account administration and log viewing.

The record

CVE
CVE-2023-43850
Published
May 28, 2024
Updated
Mar 18, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-1286, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 28, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 18, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1286Improper Validation of Syntactic Correctness of Input
T1499Endpoint Denial of Service

Public exploit references

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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