CVE Catalog

CVE-2026-8618

HighCVSS 7.7
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.23%

13th percentile - higher than 13% of all known CVEs

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.

Risk Assessment

An attacker on the local network can take control of the device or cause it to crash, potentially disrupting network operations and compromising security.

Recommendation

Apply available firmware updates from the manufacturer. Additionally, limit trust in devices on the local network and monitor TDDP traffic.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS