CVE-2025-4632
published 2025-05-13CVE-2025-4632: Improper limitation of a pathname to a restricted directory vulnerability in Samsung MagicINFO 9 Server version before 21.1052 allows attackers to write…
PriorityP192critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
KEVITWEXPLOITInitial access
CISA Known Exploited Vulnerabilitydue 2025-06-12
Exploited in the wild
EPSS
24.07%
97.8th percentile
Improper limitation of a pathname to a restricted directory vulnerability in Samsung MagicINFO 9 Server version before 21.1052 allows attackers to write arbitrary file as system authority.
Affected
2 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| samsung | magicinfo_9_server | < 21.1052.0 | 21.1052.0 |
| samsung_electronics | magicinfo_9_server | < 21.1052 | 21.1052 |
Detection & IOCsextracted from sources · hover to see the quote
url/MagicInfo/servlet/SWUpdateFileUploader?fileName=./../../../../../../server/{{filename}}.html&deviceType={{deviceType}}&deviceModelName={{deviceModelName}}&swVer={{swVer}}
path/MagicInfo/servlet/SWUpdateFileUploader
otherServer: magicinfo premium server
otherMagicInfo Premium Server
- →Detect path traversal exploitation attempts targeting the SWUpdateFileUploader endpoint. Look for HTTP POST requests to /MagicInfo/servlet/SWUpdateFileUploader with a fileName parameter containing directory traversal sequences (e.g., ./../../).
- →Exploitation is unauthenticated — no session or authentication token is required. Any POST to the SWUpdateFileUploader endpoint with traversal sequences in fileName from an unauthenticated source should be treated as a high-confidence attack indicator.
- →Confirm exploitation by checking whether a file written via the traversal path is subsequently accessible via a GET request to /MagicInfo/<filename>.html — a successful two-stage probe (upload then retrieve) indicates full RCE capability.
- →Use the Shodan query 'Server: magicinfo premium server' to identify exposed Samsung MagicINFO 9 Server instances on the internet for asset discovery and attack surface reduction.
- →CVE-2025-4632 is listed in CISA KEV with a remediation due date of 2025-06-12, indicating active exploitation in the wild. Prioritize detection and patching accordingly. ↗
- ·The vulnerability affects Samsung MagicINFO 9 Server versions before 21.1052 only. Instances running 21.1052 or later are patched and should not be flagged. ↗
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
vulncheck9.8CRITICAL
cisa9.8CRITICAL
CVEs like this are exactly what “Exploited This Week” covers.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-cmww-723f-496g: Improper limitation of a pathname to a restricted directory vulnerability in Samsung MagicINFO 9 Server version before 21
ghsa_unreviewed·2025-05-13
CVE-2025-4632 [CRITICAL] CWE-22 GHSA-cmww-723f-496g: Improper limitation of a pathname to a restricted directory vulnerability in Samsung MagicINFO 9 Server version before 21
Improper limitation of a pathname to a restricted directory vulnerability in Samsung MagicINFO 9 Server version before 21.1052 allows attackers to write arbitrary file as system authority.
VulnCheck
Samsung MagicINFO 9 Server Path Traversal Vulnerability
vulncheck·2025·CVSS 9.8
CVE-2025-4632 [CRITICAL] CWE-22 Samsung MagicINFO 9 Server Path Traversal Vulnerability
Samsung MagicINFO 9 Server Path Traversal Vulnerability
Samsung MagicINFO 9 Server contains a path traversal vulnerability that allows an attacker to write arbitrary file as system authority.
Affected: Samsung MagicINFO 9 Server
Required Action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Exploitation References: https://www.akamai.com/blog/security-research/2025/may/active-exploitation-mirai-geovision-iot-botnet; https://www.huntress.com/blog/post-exploitation-activities-observed-from-samsung-magicinfo-9-server-flaw; https://arcticwolf.com/resources/blog-uk/follow-up-samsung-patches-zero-day-vulnerability-in-magicinfo-9-server-cve-2025-4632/; https://thehackernews.
CISA
Samsung MagicINFO 9 Server Path Traversal Vulnerability
cisa·2025-05-22·CVSS 9.8
CVE-2025-4632 [CRITICAL] CWE-22 Samsung MagicINFO 9 Server Path Traversal Vulnerability
Vulnerability: Samsung MagicINFO 9 Server Path Traversal Vulnerability
Affected: Samsung MagicINFO 9 Server
Samsung MagicINFO 9 Server contains a path traversal vulnerability that allows an attacker to write arbitrary file as system authority.
Required Action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Notes: https://security.samsungtv.com/securityUpdates#SVP-MAY-2025 ; https://nvd.nist.gov/vuln/detail/CVE-2025-4632
Remediation Due Date: 2025-06-12
No detection rules found.
Nuclei
Samsung MagicINFO 9 Server - File Upload & Remote Code Execution
nuclei·CVSS 9.8
CVE-2025-4632 [CRITICAL] Samsung MagicINFO 9 Server - File Upload & Remote Code Execution
Samsung MagicINFO 9 Server - File Upload & Remote Code Execution
Improper limitation of a pathname to a restricted directory vulnerability in Samsung MagicINFO 9 Server version before 21.1052 allows attackers to write arbitrary file as system authority.
Template:
id: CVE-2025-4632
info:
name: Samsung MagicINFO 9 Server - File Upload & Remote Code Execution
author: s4e-io
severity: critical
description: |
Improper limitation of a pathname to a restricted directory vulnerability in Samsung MagicINFO 9 Server version before 21.1052 allows attackers to write arbitrary file as system authority.
impact: |
Unauthenticated attackers can write arbitrary files with system authority through path traversal in the file upload endpoint, achieving remote code execution.
remediation: |
Upgrade Samsung
Hackernews
ThreatsDay: AI-Powered Zero-Day Chain, 543K Live Secrets, Model Inspection RCE and 13 More Stories
blogs_hackernews·2026-10-01
CVE-2025-4632 ThreatsDay: AI-Powered Zero-Day Chain, 543K Live Secrets, Model Inspection RCE and 13 More Stories
Home
Threat Intelligence
Vulnerabilities
Cyber Attacks
Webinars
Expert Insights
Awards
Webinars
Awards
Free eBooks
About THN
Jobs
Advertise with us
## ThreatsDay: AI-Powered Zero-Day Chain, 543K Live Secrets, Model Inspection RCE and 13 More Stories
This week, the useful words are boring ones: inspect, cache, compile, store, trust. Each sounds harmless. Each can become an attack path when a system does a little more than people expect. A model check can run code. A cache can mix up requests. A public secret can stay useful for years.
That is the lesson running through the list. Attackers do not always need a brilliant new trick. They can hide commands in public infrastructure, reuse old flaws, abuse weak defaults, or let automation stitch together a rough path that still w
Huntress
The Not So Silent Miner: Threat Actor Compiles Cryptominer on the Endpoint
blogs_huntress·2026-09-24·CVSS 9.8
CVE-2025-4632 [CRITICAL] The Not So Silent Miner: Threat Actor Compiles Cryptominer on the Endpoint
## Background
Huntress researchers recently came across a unique incident where, after gaining initial access via exploiting a known Samsung MagicINFO vulnerability and installing a rogue AnyDesk instance on the endpoint, among other things, the threat actor aimed to deploy a cryptominer.
Silent XMR Miner Builder.exe
Compiling a cryptominer in this way on a victim's endpoint could have various advantages for a threat actor, including allowing them to customize based on the target environment (such as optimizing for the endpoint's CPU architecture). However, these processes also resulted in a significant spike in activity and was – ironically – quite noisy from an EDR telemetry perspective.
## The Incident
## Initial Access
Early in September 2026, a managed endpoint was alerted for a
2025-05-13
Published
2025-05-22
Added to CISA KEV
Exploited in the wild