CVE-2023-2564Network attack vector

Unauthenticated command execution via unquoted scan arguments

Published May 7, 2023 · Updated Jan 29, 2025

OS command injection in scanservjs before 2.27.0 allows remote attackers to execute arbitrary commands through scanner settings. CommandBuilder._format leaves tab-delimited strings with backticks unquoted, allowing shell command substitution when Process executes a scan command. Network access to the unauthenticated service is sufficient, and injected commands run with the scanservjs process privileges.

CVSS severity10.0
Critical
EPSS probability40.52%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in scanservjs before 2.27.0 allows remote attackers to execute arbitrary commands through scanner settings. CommandBuilder._format leaves tab-delimited strings with backticks unquoted, allowing shell command substitution when Process executes a scan command. Network access to the unauthenticated service is sufficient, and injected commands run with the scanservjs process privileges.

The record

CVE
CVE-2023-2564
Published
May 7, 2023
Updated
Jan 29, 2025
Vendor
sbs20
Product
scanservjs
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Jan 29, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <v2.27.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

sbs20 · scanservjsversion=unspecified <v2.27.0

Published CVSS scores

10.0huntr.devCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Unix Shell

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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