CVE-2026-28773 Authenticated OS Command Injection via Ping Utility Leading to RCE as Root
Authenticated attackers can execute arbitrary shell commands as root via the Ping utility in IDC SFX Series satellite receivers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-28773?
CVE-2026-28773 is a critical command injection vulnerability in International Datacasting Corporation (IDC) SFX Series SuperFlex SatelliteReceiver Web Management Interface, published on 4 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The web-based Ping diagnostic utility (/IDC_Ping/main.cgi) in International Datacasting Corporation (IDC) SFX Series SuperFlex Satellite Receiver Web Management Interface version 101 is vulnerable to OS Command Injection. The application insecurely parses the `IPaddr` parameter. An authenticated attacker can bypass server-side semicolon exclusion checks by using alternate shell metacharacters (such as the pipe `|` operator) to append and execute arbitrary shell commands with root privileges.
Weakness: CWE-78
Which versions are affected by CVE-2026-28773?
It affects 1 product.
Products include Datacast Sfx2100 Firmware.
How do I fix CVE-2026-28773?
No fix has been published for CVE-2026-28773 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2026-28773 being exploited?
There is no known exploitation of CVE-2026-28773 in the wild and no public exploit code.
Other vulnerabilities in International Datacasting Corporation (IDC) SFX Series SuperFlex SatelliteReceiver Web Management Interface
- CVE-2026-28775 Unauthenticated RCE via SNMP Default Writable Community String
- CVE-2026-28774 Authenticated OS Command Injection via Traceroute Utility leads to Root RCE
- CVE-2026-29127 Incorrect Permission Assignment(777) on `monitor` Users Home Directory Containing SUID Root Binaries in IDC SFX2100
- CVE-2026-28777 Hardcoded and Insecure Credentials for "User" Local Account with SSH Access On IDC SFX2100 Satellite Receiver
- CVE-2026-29120 Insecure, Hardcoded Root Password Stored in Anaconda Configuration File On IDC SFX2100 Satellite Receiver
Sources
Also known as GHSA-c5hc-24j8-ggj4.