High severity · published Oct 15, 2026
CVE-2026-111105
Telegram rlottie Numeric Truncation Remote Code Execution Vulnerability
7.0
CVSS
0.1%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
High
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 4% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TE
Telegram · Telegram
6.6.2 · source: vendor
In the news
VulnerabilityHigh
ZDI-26-757: (0Day) 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 ZDI has assigned a CVSS rating of 7.0. The following CVEs are assigned: CVE-2026-111105.
Oct 15, 2026·Zero Day Initiative
Affected product
TE
Telegram
Telegram
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