CVE-2023-3322

Local code execution via writable service executable

Published Jul 24, 2023 · Updated Oct 24, 2024

Incorrect permissions in ABB Ability zenon 11 through build 106404 allow local users to execute code by replacing a service executable. Weak default permissions on the ABB Utilities directory let low-privileged users overwrite the zenonHelpCheck Windows service executable with a crafted program. Exploitation requires a low-privileged account on an affected Windows host and can alter zenon runtime activity in the service's execution context.

CVSS severity7.0
High
EPSS probability0.31%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect permissions in ABB Ability zenon 11 through build 106404 allow local users to execute code by replacing a service executable. Weak default permissions on the ABB Utilities directory let low-privileged users overwrite the zenonHelpCheck Windows service executable with a crafted program. Exploitation requires a low-privileged account on an affected Windows host and can alter zenon runtime activity in the service's execution context.

The record

CVE
CVE-2023-3322
Published
Jul 24, 2023
Updated
Oct 24, 2024
Vendor
GENEREX SYSTEMS Computervertriebsgesellschaft mbH
Product
ABB Ability zenon
Classifications
CWE-732, T1574.010
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 24, 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=11 build <=11 build 106404

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

GENEREX SYSTEMS Computervertriebsgesellschaft mbH · ABB Ability zenonversion=11 build <=11 build 106404

Published CVSS scores

6.4Asea Brown Boveri Ltd. (ABB)CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:C
7.0Asea Brown Boveri Ltd. (ABB)CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
8.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource
T1574.010Hijack Execution Flow: Services File Permissions Weakness

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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