---
id: CVE-2026-111105
title: Telegram rlottie Numeric Truncation Remote Code Execution Vulnerability
summary: >-
  Telegram rlottie Numeric Truncation Remote Code Execution Vulnerability. This
  vulnerability allows remote attackers to execute arbitrary code on affected
  installations of Telegram. User interaction is required to exploit this
  vulnerabili…
severity: high
cvss: 7
cvssVector: 'CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H'
cwe:
  - CWE-197
vendor: Telegram
product: Telegram
affected:
  - Telegram 6.6.2
published: '2026-10-15'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T18:17:26.670'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-111105'
references:
  - url: 'https://www.zerodayinitiative.com/advisories/ZDI-26-757/'
    label: zdi-disclosures@trendmicro.com
tags:
  - nvd
  - cve.org
zeroDay: true
ingestedAt: '2026-10-15T18:23:58.448Z'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-15T17:57:29.955577Z'
---

## Overview

Telegram rlottie Numeric Truncation Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Telegram. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

The specific flaw exists within the rlottie library. The issue results from the lack of proper validation of user-supplied data, which can result in a write before the start of an allocated buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-30207.

## Remediation

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