The vulnerability identified as CVE-2026-77707 involves improper certificate validation in HAVELSAN Inc. Liman Render Engine, affecting versions >=1.0 and <1.2-75. This weakness could enable an attacker to conduct an Adversary in the Middle (AiTM) attack by exploiting the failure to properly validate certificates. The CVSS 3.1 base score is 5.9, reflecting a medium severity with network attack vector, high attack complexity, no privileges required, no user interaction, and impact limited to confidentiality loss only.

Successful exploitation of this vulnerability could allow an attacker to intercept or manipulate communications by exploiting improper certificate validation, potentially compromising confidentiality. There is no indication of impact on integrity or availability. No known exploits are reported in the wild at this time.

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no patch or official fix information is provided, users should monitor HAVELSAN Inc. communications for updates and consider additional network-level protections against man-in-the-middle attacks.