CVE-2019-17621
Confirmed PUBLISHEDThe 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...
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
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.
- CVE Published
- Dec 30, 2019
- Exploitation Reported
- Jun 29, 2023
- CVSS
- 9.8 Critical
- EPSS
- —
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| n/a |
n/a
|
n/a |
Affected |
CVE References
- ftc.gov/system/files/documents/cases/dlink_proposed_... ftc.gov · CVE Record https://www.ftc.gov/system/files/documents/cases/dlink_proposed_order...
- dlink.com/en/security-bulletin dlink.com · CVE Record https://www.dlink.com/en/security-bulletin
- supportannouncement.us.dlink.com/announcement/publication.aspx supportannouncement.us.dlink.com · CVE Record https://supportannouncement.us.dlink.com/announcement/publication.asp...
- supportannouncement.us.dlink.com/announcement/publication.aspx supportannouncement.us.dlink.com · CVE Record https://supportannouncement.us.dlink.com/announcement/publication.asp...
- medium.com/%40s1kr10s/d-link-dir-859-rce-unautenticated... medium.com · CVE Record https://medium.com/%40s1kr10s/d-link-dir-859-rce-unautenticated-cve-2...
Show 2 more references
- medium.com/%40s1kr10s/d-link-dir-859-rce-unautenticated... medium.com · CVE Record https://medium.com/%40s1kr10s/d-link-dir-859-rce-unautenticated-cve-2...
- packetstormsecurity.com/files/156054/D-Link-DIR-859-Unauthenticated-... packetstormsecurity.com · CVE Record http://packetstormsecurity.com/files/156054/D-Link-DIR-859-Unauthenti...
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CISA First | 2023-06-29 00:00 UTC |
Scanner Artifacts
Nuclei and Metasploit references linked to this CVE.
| Scanner | Reference | Detected |
|---|---|---|
| Metasploit | https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/upnp/dlink_dir859_subscribe_exec.rb | Apr 28, 2025 |
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:L/Au:N/C:C/I:C/A:C
Exploitation Status
Exploited in the wild
Recorded 2023-06-29 00:00:00 UTC · CISA
Proof of concept available
Recorded 2022-07-20 09:39:36 UTC · GitHub
Weaknesses (CWE)
-
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Scanner Integrations
| Scanner | Reference | Detected |
|---|---|---|
| Metasploit | https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/upnp/dlink_dir859_subscribe_exec.rb | Apr 28, 2025 |
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
github · Created 2022-07-20 09:39:36 UTC · 3 stars
CVE-2019-17621 DLink_RCE
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
15:02 UTC about 1 year ago15:02 UTC · about 1 year ago
Metasploit module available
Exploit module available
-
00:00 UTC about 3 years ago00:00 UTC · about 3 years ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
09:39 UTC about 4 years ago09:39 UTC · about 4 years ago
Public PoC available
Public proof-of-concept code published
-
16:09 UTC over 6 years ago16:09 UTC · over 6 years ago
CVE published
Vulnerability disclosed publicly
-
00:00 UTC almost 7 years ago00:00 UTC · almost 7 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2019-17621
{
"cve_id": "CVE-2019-17621",
"title": "The UPnP endpoint URL /gena.cgi in the D-Link DIR-859 Wi-Fi router 1.05 and 1...",
"affected_vendor": "D-Link",
"affected_product": "DIR-859 Wi-Fi router",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 9.8,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}