Echo Mate CVE-2026-4752

The CVSS vector (AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H) indicates a local attack vector requiring high privileges and high attack complexity, which significantly constrains real-world exploitability. While the impact ratings (confidentiality, integrity, and availability all high) suggest severe consequences if successfully exploited, the prerequisites—local access and elevated privileges—mean this is not a trivial remote code execution vector. The availability of a vendor patch and the report from GovTech CSG suggest responsible disclosure. Without confirmed EPSS data, KEV status, or public POC availability in the provided intelligence, the real-world risk appears moderate to organizations with strong privilege separation and access controls, but elevated for environments where local attackers or compromised accounts with high privileges are plausible threat models.

An attacker with high-level privileges on a system running vulnerable Echo-Mate (e.g., an administrator account or a compromised service with elevated permissions) could craft a specific sequence of operations that triggers a use-after-free condition. For example, by manipulating Echo-Mate's internal state or crafting malicious input that causes the application to reference freed memory, the attacker could leak sensitive data from adjacent memory regions, corrupt critical data structures, or crash the application. High attack complexity suggests the exploit is not trivial and may require detailed knowledge of Echo-Mate's memory layout and internal behavior, but the availability of a vendor patch indicates this has been demonstrated and confirmed.