CVE-2022-24581Network attack vector

SMB credential-hash disclosure via attacker-controlled UNC path

Published May 27, 2022 · Updated Jul 9, 2026

External path control in ACEweb Online Portal 3.5.065 allows remote attackers to obtain the service account's SMB password hash. The unauthenticated file-upload handler accepts an attacker-supplied UNC path as the uploaded file location, causing the server to connect to an external SMB share. No account or user interaction is required; the outbound authentication discloses the executing user's username and password hash, with no reported data modification or service interruption.

CVSS severity7.5
High
EPSS probability0.94%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

External path control in ACEweb Online Portal 3.5.065 allows remote attackers to obtain the service account's SMB password hash. The unauthenticated file-upload handler accepts an attacker-supplied UNC path as the uploaded file location, causing the server to connect to an external SMB share. No account or user interaction is required; the outbound authentication discloses the executing user's username and password hash, with no reported data modification or service interruption.

The record

CVE
CVE-2022-24581
Published
May 27, 2022
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-434, T1187
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 27, 2022CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.0NIST National Vulnerability DatabaseAV:N/AC:L/Au:N/C:P/I:N/A:N
7.5NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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 exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1187Forced Authentication

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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