What is the CVSS score of CVE-2025-33053?

CVE-2025-33053 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 48.5%.

Which versions of Windows are affected by CVE-2025-33053?

CVE-2025-33053 is a critical remote code execution vulnerability in Windows Internet Shortcut Files (.url) that is actively exploited in the wild with publicly available exploit code.. A patch is available.

Is there a public PoC exploit available for CVE-2025-33053?

Yes, a public proof-of-concept exploit is available for CVE-2025-33053. Prioritise patching immediately. EPSS: 48.5%.

How to fix or mitigate CVE-2025-33053?

Within 24 hours: Inventory systems running vulnerable Windows versions and disable or restrict .url file handling via Group Policy (Set 'Internet Shortcuts' file association restrictions). Within 7 days: Apply Microsoft security patch for CVE-2025-33053 across all Windows endpoints (consult MSRC advisory for specific KB/version mapping). Within 30 days: Conduct audit of .url files in shared drives, email archives, and downloads folders; implement email gateway rules to block .url attachments or warn users on opening.

Windows CVE-2025-33053

EUVD-2025-17721 HIGH

External Control of File Name or Path (CWE-73)

2025-06-10 secure@microsoft.com

Microsoft Windows RCE Path Traversal Windows Server 2016 Windows Server 2025 Windows 10 1507 Windows Server 2008 Windows 11 22h2 Windows Server 2012 Windows 10 1607 Windows Server 2022 23h2 Windows 10 22h2 Windows 10 1809 Windows Server 2022 Windows 11 24h2 Windows 10 21h2 Windows 11 23h2 Windows Server 2019

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Updated

Apr 16, 2026 - 06:41 EUVD-patch-fix

executive_summary

Re-analysis Queued

Apr 16, 2026 - 05:29 backfill_euvd_patch

patch_released

Patch available

Apr 16, 2026 - 05:29 EUVD

10.0.19045.5965,10.0.14393.8148,10.0.26100.4349

EUVD ID Assigned

Mar 14, 2026 - 19:49 euvd

EUVD-2025-17721

Analysis Generated

Mar 14, 2026 - 19:49 vuln.today

Added to CISA KEV

Oct 27, 2025 - 17:12 cisa

CISA KEV

PoC Detected

Oct 27, 2025 - 17:12 vuln.today

Public exploit code

CVE Published

Jun 10, 2025 - 17:22 nvd

HIGH 8.8

DescriptionCVE.org

External control of file name or path in Internet Shortcut Files allows an unauthorized attacker to execute code over a network.

AnalysisAI

Windows Internet Shortcut Files (.url) contain an external control vulnerability (CVE-2025-33053, CVSS 8.8) that enables remote code execution over a network. KEV-listed with EPSS 48.5% and public PoC, this vulnerability allows attackers to craft malicious .url files that execute arbitrary code when opened, bypassing the security restrictions normally applied to internet-sourced shortcut files.

Technical ContextAI

Internet Shortcut (.url) files are simple text files that point to web resources. Windows handles them through the Shell, applying security checks based on the file's origin. This vulnerability allows attackers to manipulate the file path or name handling to bypass security restrictions (Mark of the Web, SmartScreen) and execute arbitrary code. The .url format is particularly dangerous because it's commonly shared via email and file shares, and users often trust shortcut files.

RemediationAI

Apply Microsoft security update. Block .url file attachments at email gateways. Educate users about shortcut file risks. Enable ASR rules for Shell-based attack prevention.