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4 vulnerabilities found for Deco M9 Plus V2 by TP-Link Systems Inc.
CVE-2026-8618 (GCVE-0-2026-8618)
Vulnerability from nvd – Published: 2026-10-01 18:16 – Updated: 2026-10-01 18:36
VLAI
EPSS
VEX
Title
Pre-Authentication Stack-based Buffer Overflow Remote Code Execution in TDDPv2 Subtype 0x91 on Deco M9 Plus
Summary
A stack-based buffer overflow vulnerability exists in the TDDPv2 service (/usr/bin/tddp) on Deco M9 Plus due to insufficient validation of decrypted request data length before it is copied into a fixed-size stack buffer in the subtype 0x91 handler. Successful exploitation may allow an adjacent, unauthenticated attacker to cause a denial of service or achieve arbitrary code execution during the device setup phase through crafted TDDP packets.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 18:35 UTC
CWE
- CWE-121 - Stack-based buffer overflow
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.tp-link.com/en/support/download/deco-… | patch |
| https://www.tp-link.com/us/support/download/deco-… | patch |
| https://www.tp-link.com/us/support/faq/5322/ | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TP-Link Systems Inc. | Deco M9 Plus V2 |
Affected:
0 , < 1.9.2 Build 20260818
(custom)
|
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CVE-2026-17176 (GCVE-0-2026-17176)
Vulnerability from nvd – Published: 2026-09-10 23:14 – Updated: 2026-10-01 17:55
VLAI
EPSS
VEX
Title
OS Command Injection Vulnerability in Deco Devices
Summary
An OS
command injection vulnerability in the TDDP module of Deco BE11000 and Deco M9 Plus allows an
adjacent network attacker to execute arbitrary commands with root privileges by
sending a crafted UDP packet.
Successful exploitation may lead to complete
device compromise, including unauthorized command execution, modification of
device settings, and loss of confidentiality, integrity, and availability
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-11 14:32 UTC
CWE
- CWE-78 - Improper neutralization of special elements used in an OS command ('OS command injection')
Assigner
References
4 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| TP-Link Systems Inc. | Deco BE11000 V2 |
Affected:
0 , < 1.3.5 Build 26071712
(custom)
|
|
| TP-Link Systems Inc. | Deco M9 Plus V2 |
Affected:
0 , < 1.9.2 Build 20260818
(custom)
|
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CVE-2026-8618 (GCVE-0-2026-8618)
Vulnerability from cvelistv5 – Published: 2026-10-01 18:16 – Updated: 2026-10-01 18:36
VLAI
EPSS
VEX
Title
Pre-Authentication Stack-based Buffer Overflow Remote Code Execution in TDDPv2 Subtype 0x91 on Deco M9 Plus
Summary
A stack-based buffer overflow vulnerability exists in the TDDPv2 service (/usr/bin/tddp) on Deco M9 Plus due to insufficient validation of decrypted request data length before it is copied into a fixed-size stack buffer in the subtype 0x91 handler. Successful exploitation may allow an adjacent, unauthenticated attacker to cause a denial of service or achieve arbitrary code execution during the device setup phase through crafted TDDP packets.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 18:35 UTC
CWE
- CWE-121 - Stack-based buffer overflow
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.tp-link.com/en/support/download/deco-… | patch |
| https://www.tp-link.com/us/support/download/deco-… | patch |
| https://www.tp-link.com/us/support/faq/5322/ | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TP-Link Systems Inc. | Deco M9 Plus V2 |
Affected:
0 , < 1.9.2 Build 20260818
(custom)
|
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CVE-2026-17176 (GCVE-0-2026-17176)
Vulnerability from cvelistv5 – Published: 2026-09-10 23:14 – Updated: 2026-10-01 17:55
VLAI
EPSS
VEX
Title
OS Command Injection Vulnerability in Deco Devices
Summary
An OS
command injection vulnerability in the TDDP module of Deco BE11000 and Deco M9 Plus allows an
adjacent network attacker to execute arbitrary commands with root privileges by
sending a crafted UDP packet.
Successful exploitation may lead to complete
device compromise, including unauthorized command execution, modification of
device settings, and loss of confidentiality, integrity, and availability
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-11 14:32 UTC
CWE
- CWE-78 - Improper neutralization of special elements used in an OS command ('OS command injection')
Assigner
References
4 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| TP-Link Systems Inc. | Deco BE11000 V2 |
Affected:
0 , < 1.3.5 Build 26071712
(custom)
|
|
| TP-Link Systems Inc. | Deco M9 Plus V2 |
Affected:
0 , < 1.9.2 Build 20260818
(custom)
|
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