CVE-2025-54072

7.5 HIGH

📋 TL;DR

This vulnerability allows remote code execution on Windows systems when using yt-dlp with the --exec option and default placeholder. Attackers can craft malicious filenames that bypass sanitization, executing arbitrary commands. Only Windows users of yt-dlp versions 2025.06.25 and below who use the --exec option are affected.

💻 Affected Systems

Products:
  • yt-dlp
Versions: 2025.06.25 and below
Operating Systems: Windows
Default Config Vulnerable: ✅ No
Notes: Only vulnerable when using --exec option with default placeholder or {} on Windows systems. Linux/macOS systems are not affected.

📦 What is this software?

⚠️ Risk & Real-World Impact

🔴

Worst Case

Full system compromise with attacker gaining complete control over the Windows machine, potentially leading to data theft, ransomware deployment, or lateral movement within the network.

🟠

Likely Case

Local privilege escalation or execution of arbitrary commands in the context of the yt-dlp user, potentially leading to data exfiltration or installation of malware.

🟢

If Mitigated

No impact if --exec option is avoided or proper input validation is implemented through external scripts.

🌐 Internet-Facing: MEDIUM
🏢 Internal Only: HIGH

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: LOW

Exploitation requires user to download maliciously named files and use --exec option. This is a bypass of previous CVE-2024-22423 mitigation.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: 2025.07.21

Vendor Advisory: https://github.com/yt-dlp/yt-dlp/security/advisories/GHSA-45hg-7f49-5h56

Restart Required: No

Instructions:

1. Upgrade yt-dlp to version 2025.07.21 or later using: pip install --upgrade yt-dlp
2. Verify installation with: yt-dlp --version
3. No system restart required.

🔧 Temporary Workarounds

Avoid --exec option

windows

Completely avoid using the --exec option on Windows systems

Do not use --exec in any yt-dlp commands

Use JSON output with external processing

all

Use --write-info-json or --dump-json options and process output with external scripts

yt-dlp --write-info-json <URL>
yt-dlp --dump-json <URL>

🧯 If You Can't Patch

  • Immediately stop using --exec option on all Windows systems
  • Implement strict file naming policies and input validation for downloaded content

🔍 How to Verify

Check if Vulnerable:

Check yt-dlp version with: yt-dlp --version. If version is 2025.06.25 or below and you use --exec on Windows, you are vulnerable.

Check Version:

yt-dlp --version

Verify Fix Applied:

After upgrade, verify version is 2025.07.21 or higher with: yt-dlp --version

📡 Detection & Monitoring

Log Indicators:

  • Unusual command execution patterns from yt-dlp process
  • Suspicious file operations following yt-dlp downloads

Network Indicators:

  • Outbound connections from yt-dlp process to unexpected destinations
  • DNS queries for command and control domains

SIEM Query:

process_name:yt-dlp AND command_line:*--exec* AND os:Windows

🔗 References

📤 Share & Export