---
id: CVE-2026-77707
title: Improper certificate validation vulnerability in HAVELSAN Inc
summary: >-
  Improper certificate validation vulnerability in HAVELSAN Inc. Liman Render
  Engine allows Adversary in the Middle (AiTM).


  This issue affects Liman Render Engine: from 1.0 before 1.2-75.
severity: medium
cvss: 5.9
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-295
vendor: HAVELSAN Inc.
product: Liman Render Engine
affected:
  - liman_render_engine >= 1.0 < 1.2-75
published: '2026-09-24'
updated: '2026-09-24'
sourceUpdated: '2026-09-24T19:36:51.280'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-77707'
references:
  - url: 'https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1172'
    label: iletisim@usom.gov.tr
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-24T14:58:34.805701Z'
ingestedAt: '2026-09-24T15:45:56.645Z'
---

## Overview

Improper certificate validation vulnerability in HAVELSAN Inc. Liman Render Engine allows Adversary in the Middle (AiTM).

This issue affects Liman Render Engine: from 1.0 before 1.2-75.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.