CVE-2024-0801Known exploitationPublic exploitNetwork attack vector

Console process termination via malformed username

Published Mar 13, 2024 · Updated Aug 15, 2024

Denial of service in ASNative.dll in Arcserve Unified Data Protection 8.1 and 9.2 allows remote attackers to terminate the Console process. The validateUserByUser path passes a zero destination size to wcsncpy_s when a fully qualified username begins with a slash, invoking the default invalid-parameter handler. The SOAP endpoint accepts the demonstrated request without authentication or user interaction, and the reported consequence is limited to interruption of Console availability.

CVSS severity7.5
High
EPSS probability41.84%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in ASNative.dll in Arcserve Unified Data Protection 8.1 and 9.2 allows remote attackers to terminate the Console process. The validateUserByUser path passes a zero destination size to wcsncpy_s when a fully qualified username begins with a slash, invoking the default invalid-parameter handler. The SOAP endpoint accepts the demonstrated request without authentication or user interaction, and the reported consequence is limited to interruption of Console availability.

The record

CVE
CVE-2024-0801
Published
Mar 13, 2024
Updated
Aug 15, 2024
Vendor
Arcserve
Product
Arcserve Unified Data Protection (UDP)
Classifications
CWE-75, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 13, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 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 <=8.1
  2. Affected versionversion=0 <=9.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Arcserve · Arcserve Unified Data Protection (UDP)version=0 <=8.1; version=0 <=9.2

Published CVSS scores

7.5Tenable Network Security, Inc.CVSS: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.

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
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-75Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)
T1499.004Application or System Exploitation

Public exploit references

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

Reported exploitation

Technologies

Your stack

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Your stack

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