Samsung MagicINFO 9 Server Path Traversal Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2026-04-24
• EPSS: 92% chance of exploitation in the next 30 days (higher than 100% of CVEs)
• Critical severity: CVSS 9.8

[ Description ]Official description

Improper limitation of a pathname to a restricted directory vulnerability in Samsung MagicINFO 9 Server version before 21.1050 allows attackers to write arbitrary file as system authority.

CISA: Samsung MagicINFO 9 Server contains a path traversal vulnerability that could allow an attacker to write arbitrary files as system authority.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 8 May 2026): Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• security.samsungtv.com/securityUpdatesVendor Advisory
• arcticwolf.com/resources/blog-uk/arctic-wolf-observes-exploitation-of-path-traversal-vu…Third Party Advisory
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource