CVE-2018-17787
9.8
CRITICAL · CVSS 3.0 · EPSS 3.7% (pctl 89)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
Description
On D-Link DIR-823G devices, the GoAhead configuration allows /HNAP1 Command Injection via shell metacharacters in the POST data, because this data is sent directly to the "system" library function.
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 3.66% — more likely to be exploited than 89% of all CVEs |
| Weakness | CWE-78 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2018-10-02 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| d-link | dir-823g firmware |
| dlink | dir-823g |
→ the Explorer · watch your stack · NVD