CVE-2018-5721
High
Description
Stack-based buffer overflow in the ej_update_variables function in router/httpd/web.c on ASUS routers (when using software from https://github.com/RMerl/asuswrt-merlin) allows web authenticated attackers to execute code via a request that updates a setting. In ej_update_variables, the length of the variable action_script is not checked, as long as it includes a "_wan_if" substring.
SeverityHigh
CVSS8.8
Exploit probability—
ProductAsuswrt-merlin
PublishedJan 17, 2018
First seenJan 17, 2018
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| asuswrt-merlin asuswrt-merlin | v ≤ 382.1_2 | — |
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