CVE-2026-90693
Critical
Description
A flaw has been found in D-Link DIR-878 120B05. This impacts the function SetWan3Settings of the component WAN Settings. This manipulation of the argument Primary/Secondary causes stack-based buffer overflow. Remote exploitation of the attack is possible.
SeverityCritical
CVSS9.9
Exploit probability—
Product
D-link Dir-878
PublishedSep 14, 2026
First seenSep 14, 2026
Weakness typeCWE-121CWE-121CWE-119Memory buffer bounds error
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| d-link dir-878 | 120B05 | — |
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