CVE-2022-45145Network attack vector

Arbitrary command execution via unescaped egg metadata

Published Dec 10, 2022 · Updated Apr 23, 2025

OS command injection in CHICKEN 5.0.0 through 5.3.0 allows attackers to execute arbitrary commands while installing a crafted .egg file. On Windows, egg-compile.scm places .egg-supplied values into a generated batch command without neutralizing command-shell escape characters. Exploitation requires installation of an attacker-controlled package, and injected commands run with the installing user's privileges.

CVSS severity9.8
Critical
EPSS probability1.27%
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 CHICKEN 5.0.0 through 5.3.0 allows attackers to execute arbitrary commands while installing a crafted .egg file. On Windows, egg-compile.scm places .egg-supplied values into a generated batch command without neutralizing command-shell escape characters. Exploitation requires installation of an attacker-controlled package, and injected commands run with the installing user's privileges.

The record

CVE
CVE-2022-45145
Published
Dec 10, 2022
Updated
Apr 23, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, T1059.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 10, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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')
T1059.003Windows Command Shell

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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