CVE-2024-37385Network attack vector

OS command execution via forward-slash UNC path

Published Jun 7, 2024 · Updated Feb 13, 2025

Command injection in Roundcube Webmail before 1.5.7 and 1.6.0 through 1.6.6 on Windows allows remote attackers to execute OS commands. The rcube_image.php getCommand() check rejects only backslash-prefixed network shares, so forward-slash UNC values in im_convert_path or im_identify_path pass file_exists() and become executable command paths. Exploitation requires Windows and a crafted non-default image-tool setting, and commands run with the web server process privileges.

CVSS severity9.8
Critical
EPSS probability1.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Roundcube Webmail before 1.5.7 and 1.6.0 through 1.6.6 on Windows allows remote attackers to execute OS commands. The rcube_image.php getCommand() check rejects only backslash-prefixed network shares, so forward-slash UNC values in im_convert_path or im_identify_path pass file_exists() and become executable command paths. Exploitation requires Windows and a crafted non-default image-tool setting, and commands run with the web server process privileges.

The record

CVE
CVE-2024-37385
Published
Jun 7, 2024
Updated
Feb 13, 2025
Vendor
Roundcube
Product
Roundcube Webmail
Classifications
CWE-77, CAPEC-248, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 7, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 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=0 <1.5.7
  2. Affected versionversion=1.6.0 <1.6.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Roundcube · Roundcube Webmailversion=0 <1.5.7; version=1.6.0 <1.6.7

Published CVSS scores

9.8NVDCVSS: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 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-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CAPEC-248Command Injection
T1059Command and Scripting Interpreter

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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