CVE-2024-23749Public exploit

Code execution via unsanitized SCP filename

Published Feb 9, 2024 · Updated May 15, 2025

Command injection in KiTTY 0.76.1.13 and earlier allows attackers to execute arbitrary commands when a user connects to a crafted SSH host. The GetOneFile function appends the filename from an __rv SCP escape sequence to a command buffer without neutralizing shell metacharacters, then passes that buffer to system(). A KiTTY user must open an SSH session to a malicious or compromised host; the terminal output then runs commands with that user's Windows privileges.

CVSS severity7.8
High
EPSS probability4.69%
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 KiTTY 0.76.1.13 and earlier allows attackers to execute arbitrary commands when a user connects to a crafted SSH host. The GetOneFile function appends the filename from an __rv SCP escape sequence to a command buffer without neutralizing shell metacharacters, then passes that buffer to system(). A KiTTY user must open an SSH session to a malicious or compromised host; the terminal output then runs commands with that user's Windows privileges.

The record

CVE
CVE-2024-23749
Published
Feb 9, 2024
Updated
May 15, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-77, T1059.003
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 9, 2024CVE publishedPublication date reported by the CVE source.
  2. May 15, 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 vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059.003Command and Scripting Interpreter: Windows Command Shell

Public exploit references

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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