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CVE-2026-9659

Stack-Based Buffer Overflow in Totolink X2000R boa formFilter Allows Remote Code Execution

Multiple exploitable stack-based buffer overflow vulnerabilities exist in the boa formFilter functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger these vulnerabilities. This vulnerability deals with the vpnUser parameter.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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CVE-2026-42020

Stack-Based Buffer Overflow in Totolink X2000R Boa formIpv6Setup PPPoE Enables Remote Code Execution

Multiple stack-based buffer overflow vulnerabilities exist in the boa formIpv6Setup pppoe functionality of Totolink X2000R TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327. A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger these vulnerabilities. This vulnerability concerns the pppoe_dns2 parameter.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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CVE-2026-42019

Stack-based Buffer Overflow in Totolink X2000R PPPoE DNS Parameter Leading to Arbitrary Code Execution

Multiple stack-based buffer overflow vulnerabilities exist in the boa formIpv6Setup pppoe functionality of Totolink X2000R TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327. A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger these vulnerabilities. This vulnerability concerns the pppoe_dns1 parameter.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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CVE-2026-41223

Stack-based buffer overflow in Totolink X2000R enables remote code execution

A stack-based buffer overflow vulnerability exists in the boa formMapDelDevice macstr functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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CVE-2026-41222

Stack-based buffer overflow in Totolink X2000R formParentControl allows arbitrary code execution

A stack-based buffer overflow vulnerability exists in the boa formParentControl url functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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CVE-2026-40627

An os command injection vulnerability exists in the boa formWsc targetAPSsid functionality of Totolink X2000R TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327. A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.

CVSS 3.1 · 9.1 Critical EPSS 1.0% KEV · Not listed
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CVE-2026-40615

Stack-Based Buffer Overflow in Totolink X2000R DeviceName Handling

A stack-based buffer overflow vulnerability exists in the boa formParentControl deviceName functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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CVE-2026-33568

A OS command injection vulnerability exists in the boa formMapDelDevice macstr functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.

CVSS 3.1 · 9.1 Critical EPSS 1.0% KEV · Not listed
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CVE-2026-28763

Stack-based buffer overflow in boa formMapDelDevice hostname functionality of X2000R

A stack-based buffer overflow vulnerability exists in the boa formMapDelDevice hostname functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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CVE-2026-42025

HTTP Stack‑Based Buffer Overflow in Totolink X2000R DHCP DNS Setup Exposes Arbitrary Code Execution

Multiple exploitable stack-based buffer overflow vulnerabilities exist in the boa formIpv6Setup dhcp_dns functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger these vulnerabilities. This vulnerability concerns the dhcp_dns1 parameter.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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CVE-2026-9869

Stack-Based Buffer Overflow in TR069 Interface of Totolink X2000R Enables Remote Code Execution

A stack-based buffer overflow vulnerability exists in the boa formTR069Config functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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CVE-2026-9827

Arbitrary File Write Enabling Remote Code Execution via formUploadFile on Totolink X2000R

A arbitrary file write vulnerability exists in the boa formUploadFile functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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CVE-2026-9817

Stack‑Based Buffer Overflow in TOTOLINK X2000R Boa formUploadFile Enables Arbitrary Code Execution by Authenticated Users

A stack-based buffer overflow vulnerability exists in the boa formUploadFile functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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CVE-2026-9814

OS Command Injection in X2000R boa formWizard newPass

An OS command injection vulnerability exists in the boa formWizard newPass functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger this vulnerability.

CVSS 3.1 · 9.1 Critical EPSS 1.6% KEV · Not listed
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CVE-2026-9660

Stack-Based Buffer Overflow in Totolink X2000R Boa formFilter Allows Remote Code Execution

Multiple exploitable stack-based buffer overflow vulnerabilities exist in the boa formFilter functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger these vulnerabilities. This vulnerability deals with the vpnPassword parameter.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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CVE-2026-42026

Stack-based Buffer Overflow in Totolink X2000R DHCP DNS Functionality

Multiple exploitable stack-based buffer overflow vulnerabilities exist in the boa formIpv6Setup dhcp_dns functionality of X2000R (version(s): TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327). A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger these vulnerabilities. This vulnerability concerns the dhcp_dns2 parameter.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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CVE-2026-42024

Stack‑Based Buffer Overflow in Totolink X2000R IPv6 Static Configuration Leading to Arbitrary Code Execution

Multiple stack-based buffer overflow vulnerabilities exist in the boa formIpv6Setup static network configuration functionality of Totolink X2000R TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327. A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger these vulnerabilities. This vulnerability concerns the static_gw parameter.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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CVE-2026-42023

Stack-based buffer overflow in Totolink X2000R static IPv6 configuration allows remote code execution

Multiple stack-based buffer overflow vulnerabilities exist in the boa formIpv6Setup static network configuration functionality of Totolink X2000R TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327. A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger these vulnerabilities. This vulnerability concerns the static_ipv6 parameter.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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CVE-2026-42022

Stack‑Based Buffer Overflow in Totolink X2000R Static IPv6 Configuration

Multiple stack-based buffer overflow vulnerabilities exist in the boa formIpv6Setup static network configuration functionality of Totolink X2000R TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327. A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger these vulnerabilities. This vulnerability concerns the static_dns2 parameter.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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CVE-2026-42021

Stack-Based Buffer Overflow in Totolink X2000R HTTP Interface Leading to Arbitrary Code Execution

Multiple stack-based buffer overflow vulnerabilities exist in the boa formIpv6Setup static network configuration functionality of Totolink X2000R TOTOLINK-X2000R-Gh-V1.0.0-B20250421.1327. A specially crafted HTTP request can lead to arbitrary code execution. An attacker can make an authenticated HTTP request to trigger these vulnerabilities. This vulnerability concerns the static_dns1 parameter.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
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