Skip to main content
Live Webinar with SANS (June 25)— Agentic CTI Automation for Fun & ProfitRegister Free
Mallory
High

Unauthenticated arbitrary file upload leading to RCE in Samsung MagicInfo 9 Server

IdentifiersCVE-2026-25201CWE-434· Unrestricted Upload of File with…

CVE-2026-25201 is an unauthenticated arbitrary file upload vulnerability in Samsung MagicInfo 9 (MagicInfo9) Server affecting versions prior to 21.1090.1. Due to insufficient validation of user authentication and uploaded file type, a remote attacker can upload arbitrary files (e.g., a malicious script/web shell) and achieve remote code execution on the MagicInfo 9 Server, which can subsequently lead to privilege escalation to administrative control.

Share:
For your environment

Are you exposed to this one?

Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.

ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation enables remote code execution on the MagicInfo 9 Server and can lead to privilege escalation to administrative control. Given the CVSS v3.1 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H), the resulting impact is high across confidentiality, integrity, and availability.

Mitigation

If you can’t patch tonight, do this now.

If immediate upgrade is not possible, reduce exposure of MagicInfo 9 Server to untrusted networks (e.g., restrict access to management/upload endpoints via network ACLs/VPN) to prevent unauthenticated attackers from reaching the vulnerable upload functionality until 21.1090.1+ can be deployed.

Remediation

Patch, then assume compromise.

Upgrade Samsung MagicInfo 9 Server to version 21.1090.1 or later, which Samsung indicates addresses/"closes" the file upload weakness underlying CVE-2026-25201.
PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

EXPOSURE SURFACE

Affected products & vendors

Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.

VendorProductType
Samsung ElectronicsMagicinfo 9 Serverapplication

Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.

What this page doesn’t show

The version that knows your environment.

This page is what’s public. Mallory adds the parts that aren’t: which of your assets are affected, which adversaries are exploiting it right now, which detections to deploy, and what to do tonight.
Exposure mapping

Query your assets running an affected version, and investigate the blast radius.

Threat actor evidence

Every observed campaign linking this CVE to a named adversary.

Associated malware

Malware families riding this exploit, with evidence and IOCs.

Detection signatures

YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.

Vendor-by-vendor mapping

Cross-references every affected SKU, including bundled OEM variants.

Social activity5

Community discussion across Reddit, Mastodon, and other social sources.