CVE-2024-32487Public exploit

Command execution via misquoted newline filenames

Published Apr 13, 2024 · Updated Aug 2, 2024

OS command injection in NetApp Less 653 and earlier allows context-dependent attackers to execute commands through crafted filenames. The shell_quoten routine in filename.c backslash-escapes a newline instead of enclosing it in quotes when building the LESSOPEN preprocessor command. Exploitation requires a user to open an attacker-controlled filename while LESSOPEN is enabled, including through common zless wrappers, and runs commands with that user's privileges.

CVSS severity8.6
High
EPSS probability0.63%
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 NetApp Less 653 and earlier allows context-dependent attackers to execute commands through crafted filenames. The shell_quoten routine in filename.c backslash-escapes a newline instead of enclosing it in quotes when building the LESSOPEN preprocessor command. Exploitation requires a user to open an attacker-controlled filename while LESSOPEN is enabled, including through common zless wrappers, and runs commands with that user's privileges.

The record

CVE
CVE-2024-32487
Published
Apr 13, 2024
Updated
Aug 2, 2024
Vendor
NetApp
Product
Less
Classifications
CWE-96, T1204.002, T1059.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 13, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 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=0 <=653

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

NetApp · Lessversion=0 <=653

Published CVSS scores

8.6CISA ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
8.6UbuntuCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
7.0Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:N/UI:R/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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-96Improper Neutralization of Directives in Statically Saved Code ('Static Code Injection')
T1204.002User Execution: Malicious File
T1059.004Command and Scripting Interpreter: Unix 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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