CVE-2019-17621

CRITICAL9.8

CISA KEV

Published 2019-12-30 · Updated 2026-06-17 · Source cve@mitre.org

Summary

CVE-2019-17621 is a critical-severity (CVSS 9.8) vulnerability in D-Link DIR-859 Router. CISA added it to the Known Exploited Vulnerabilities catalog on June 29, 2023, which means exploitation in the wild has been confirmed; US federal agencies had to remediate it by July 20, 2023. CISA does not currently list it as used in ransomware campaigns. D-Link has 26 vulnerabilities in the KEV catalog, 2 of them linked to ransomware.

All 26 known-exploited D-Link vulnerabilities →

Description

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 vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE-78CWE-78

CISA Known-Exploited Vulnerability

Product: D-Link — DIR-859 Router

Name: D-Link DIR-859 Router Command Execution Vulnerability

Date added: 2023-06-29 · Due: 2023-07-20

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

References

View on NVD

More exploited D-Link vulnerabilities

Most recently added to CISA KEV

CVE-2025-29635
DIR-823X — D-Link DIR-823X Command Injection Vulnerability
added 2026-04-24
CVE-2022-37055
Routers — D-Link Routers Buffer Overflow Vulnerability
added 2025-12-08
CVE-2020-25078
DCS-2530L and DCS-2670L Devices — D-Link DCS-2530L and DCS-2670L Devices Unspecified Vulnerability
added 2025-08-05
CVE-2020-25079
DCS-2530L and DCS-2670L Devices — D-Link DCS-2530L and DCS-2670L Command Injection Vulnerability
added 2025-08-05
CVE-2022-40799
DNR-322L — D-Link DNR-322L Download of Code Without Integrity Check Vulnerability
added 2025-08-05
CVE-2024-0769
DIR-859 Router — D-Link DIR-859 Router Path Traversal Vulnerability
added 2025-06-25

View all →

Related CVEs

Same severity, most recent

CVE-2026-58490
Tracecat is an open-source security automation platform for teams and AI agents. From version 0.37.0 until 1.0.0-beta.49, Docker Compose deployments with SAML enabled can render SAML_SIGNED_ASSERTIONS and SAML_SIGNED_RESPONSES as empty values, overriding secure application defaults and disabling both signature requirements. An unauthenticated attacker who can reach the SAML assertion consumer endpoint can submit a forged unsigned response for an existing Tracecat user email address and obtain that user’s session. Targeting an existing superadmin can result in superadmin account takeover. Exploitation does not create users when SAML user creation is disabled and does not affect default Fargate or Helm deployments. Version 1.0.0-beta.49 removes the insecure deployment pass-through and requires signed assertions and responses.
2026-11-06 · score 9.8
CVE-2026-71495
Wanderer is a self-hosted trail database for saving and sharing adventures. Prior to 0.20.0, when PUBLIC_PRIVATE_INSTANCE is not set to true, the unauthenticated POST /api/v1/trail/download handler passes the attacker-controlled JSON url field directly to event.fetch() and returns the fetched response. This allows requests to internal services such as db:8090 and search:7700, cloud metadata addresses, and other network destinations, exposing returned data and permitting internal network reconnaissance or denial of service. This issue is fixed in version 0.20.0.
2026-11-06 · score 10.0
CVE-2026-119923
A heap-based buffer overflow in the TDS prelogin parser in the Babelfish for PostgreSQL extension versions 1.0-1.5, 2.1-2.15, 3.1-3.12, 4.0-4.8, 5.1-5.4 and in Amazon Aurora PostgreSQL with Babelfish might allow remote attackers to execute arbitrary OS commands as the database process user via a specially crafted malformed TDS prelogin packet to the TDS port. This record consolidates a related NULL-pointer-dereference finding in the same prelogin parser. To remediate this issue, we recommend users upgrade to Babelfish for PostgreSQL extension versions 4.10, 5.6, 6.1 or later. As a workaround, restrict network access to the TDS port (default 1433). Customers using Amazon Aurora PostgreSQL with Babelfish should upgrade their cluster to Aurora PostgreSQL 13.9.16 (1.5.5), 13.23.3 (1.17.2), 14.6.16 (2.3.5), 14.17.8 (2.12.4), 14.18.6 (2.13.3), 14.19.5 (2.14.2), 14.20.5 (2.15.2), 14.22.3 (2.16.1), 14.23.1 (2.17.0), 15.10.8 (3.8.4), 15.12.8 (3.9.4), 15.13.6 (3.10.3), 15.14.5 (3.11.2), 15.15.5 (3.12.2), 15.17.3 (3.13.1), 15.18.1 (3.14.0), 16.8.8 (4.5.5), 16.9.6 (4.6.3), 16.10.5 (4.7.2), 16.11.5 (4.8.2), 16.13.3 (4.9.1), 16.14.1 (4.10.0), 17.4.8 (5.1.4), 17.5.6 (5.2.3), 17.6.5 (5.3.2), 17.7.5 (5.4.2), 17.9.3 (5.5.1), 17.10.1 (5.6.0), 18.3.4 (6.0.2), 18.4.1 (6.1.0) or later, and apply any pending maintenance to ensure they are on the latest patch.
2026-11-06 · score 9.8
CVE-2026-123832
In JetBrains CLion before 2026.2 code execution was possible in Safe Mode via JSON compilation database
2026-11-06 · score 9.6
CVE-2026-123831
In JetBrains CLion before 2026.2, 2026.1.4 code execution was possible in Safe Mode via Meson project settings
2026-11-06 · score 9.6