CVE-2019-17621

highpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.906 · 100 %ileexploit · weaponizedEURUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV · 2 exploits · weaponized

Likely / severe?

90.6% (100th) EPSS

CVSS 10 · high

Is it mine?

35 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

added 2023-06-29remediate by 2023-07-20

required action Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

EPSS · scored 2026-10-27

D-Link DIR-859 Router Command Execution 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.

cvss

Technical severity, 0–10. One row per scoring source.

10.0

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 9.8–10

v2.010highAV:N/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 10 · impact 10

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondaryexploitability 3.9 · impact 5.9

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: yes · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-78USprimaryCWE-78US

exploits (2)

Public proof-of-concept and weaponised exploit code.

exploit/linux/upnp/dlink_dir859_subscribe_execD-Link DIR-859 Unauthenticated Remote Command Executionweaponized · metasploit
Squirre17/CVE-2019-17621CVE-2019-17621 DLink_RCEPoC · poc_in_github

affected products (35)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
D-Link Corp. DIR-818Lx≤ 2.05b03_Beta08fstec_bduRU
D-Link Corp. DIR-822≤ 2.03b01fstec_bduRU
D-Link Corp. DIR-822≤ 3.12b04fstec_bduRU
D-Link Corp. DIR-823≤ 1.00b06_Betafstec_bduRU
D-Link Corp. DIR-859≤ 1.06b01Beta01fstec_bduRU
D-Link Corp. DIR-865L≤ 1.07b01fstec_bduRU
D-Link Corp. DIR-868L≤ 1.12b04fstec_bduRU
D-Link Corp. DIR-868L≤ 2.05b02fstec_bduRU
D-Link Corp. DIR-869≤ 1.03b02Beta02fstec_bduRU
D-Link Corp. DIR-880L≤ 1.08b04fstec_bduRU
D-Link Corp. DIR-885L R≤ 1.12b05fstec_bduRU
D-Link Corp. DIR-890L R≤ 1.11b01_Beta01fstec_bduRU
D-Link Corp. DIR-895L R≤ 1.12b10fstec_bduRU
dlink dir-818lx firmwareall versionsnvdUScpe:2.3:o:dlink:dir-818lx_firmware:*:*:*:*:*:*:*:*
dlink dir-822 firmware≤ 3.12b04nvdUScpe:2.3:o:dlink:dir-822_firmware:*:*:*:*:*:*:*:*
dlink dir-822 firmware≤ 2.03b01nvdUScpe:2.3:o:dlink:dir-822_firmware:*:*:*:*:*:*:*:*
dlink dir-823 firmware≤ 1.00b06nvdUScpe:2.3:o:dlink:dir-823_firmware:*:*:*:*:*:*:*:*
dlink dir-823 firmware= 1.00b06nvdUScpe:2.3:o:dlink:dir-823_firmware:*:*:*:*:*:*:*:*
dlink dir-859 firmware≤ 1.05b03nvdUScpe:2.3:o:dlink:dir-859_firmware:*:*:*:*:*:*:*:*

showing 20 of 35

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2019-12-30modified 2026-06-17

related (7,947)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-106931US	—OT critical	2.53% (85th)	KEV	2026-10-14
SiteGuard Server Edition contains an OS command injection vulnerability, which may allow an attacker to execute arbitrary OS commands with root or SYSTEM privileges on the system r…
CVE-2026-110447US	critical9.8OT critical	11.6% (96th)	KEV	2026-10-14
Collabora Online Built-in CODE Server before 26.4.303 (richdocumentscode), a Nextcloud app, allows remote code execution, as exploited in the wild in September and October 2026, a…
CVE-2026-105134US	critical10.0OT critical	81.8% (100th)	KEV	2026-10-04
A flaw has been found in Ahsay AhsayCBS up to 9.15.2.69/10.3.4.44. This vulnerability affects unknown code of the file /rps/api/json/UpdateReceivers.do of the component Replication…
CVE-2026-83549US	—OT critical	9.89% (96th)	KEV	2026-09-01
Post-authentication Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability has been identified in the SMA1000 Appliance Management…
CVE-2026-74233US	critical9.8OT critical	3.37% (89th)	—	2026-08-27
Zbtlink WE1326, WE357, WE5926, WE5926-WD, WE826-Q, WE826-T2, WE826-WD, WG108, and WG3526 firmware 19.1101, Zbtlink WE2426-C firmware 19.1112, Zbtlink WE5926-EC_QP firmware 20.0516,…

+7942 more

references (23)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan