SARA / Free Tools / KEV / CVE-2019-17621

CVE-2019-17621 on CISA KEV

The UPnP endpoint URL /gena.cgi in the D-Link DIR-859 Wi-Fi router 1.05 and 1.06B01 Beta01 allows an Unauthenticated remote attacker to execute system commands as root, by sending a specially crafted HTTP SUBSCRIBE request to the UPnP service when connecting to the local network.

CISA KEV — Actively Exploited

The UPnP endpoint URL /gena

Vendor / Product
— / —
Added to KEV
BOD 22-01 due
Ransomware use
CVSS / EPSS
9.8 · EPSS —

01What CISA says about this vulnerability

The UPnP endpoint URL /gena.cgi in the D-Link DIR-859 Wi-Fi router 1.05 and 1.06B01 Beta01 allows an Unauthenticated remote attacker to execute system commands as root, by sending a specially crafted HTTP SUBSCRIBE request to the UPnP service when connecting to the local network.

02Required action — verbatim from CISA

- CISA KEV: Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

03Notes & references

No additional references available in the KB record.

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

No structured affected-product list available — see references below for vendor advisories.

06Detection

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