CVE-2026-31195
High
Description
OS command injection vulnerability in the ping diagnostic handler in /bin/httpd_clientside in ALTICE LABS / SFR France GR140DG Fibre Router with firmware 3GN8020801R13, 3GN8020802R0A, or 3GN8020803R0A inserts unsanitized user input into a system() call, allowing authenticated remote attackers to execute arbitrary commands as root via crafted destAddr parameters using shell command substitution.
SeverityHigh
CVSS8.8
Exploit probability—
ProductGR140DG Fibre Router
PublishedMay 5, 2026
First seenMay 5, 2026
Weakness typeCWE-78OS command injection
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| ALTICE LABS / SFR France GR140DG Fibre Router | 3GN8020801R13 ≤ v, 3GN8020802R0A ≤ v, 3GN8020803R0A ≤ v | — |
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