Telegram
CVE-2021-40532
CRITICAL
Vulnerability Assessment
| Impact | CVSS score of 9.8 (CRITICAL). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. |
| Exploit ScenarioDerived | This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the critical-severity affected system. |
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Alert meAnalysisAI
Telegram Web K Alpha before 0.7.2 mishandles the characters in a document extension. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
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Technical ContextAI · show details
Telegram Web K Alpha before 0.7.2 mishandles the characters in a document extension. Affected products include: Telegram Web K Alpha. Version information: before 0.7.2.
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
Telegram Web K Alpha before 0.7.2 mishandles the characters in a document extension.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.
Affected Products (CPE)NVD
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One-click account takeover in Telegram Desktop before 7.2.9, where the Core::Sandbox inter-process communication layer f
Telegram Desktop before 6.9.4 fails to escape inline-keyboard button text when a chat is exported to HTML, so attacker-c
The "secret chat" feature in Telegram 4.9.1 for Android has a "side channel" in which Telegram servers send GET requests
Telegram Desktop versions up to 2.9.2 is affected by allocation of resources without limits or throttling (CVSS 7.5).
Telegram Desktop (aka tdesktop) 1.3.14 might allow attackers to cause a denial of service (assertion failure and applica
Telegram Android <7.1.0 (2090), Telegram iOS <7.1, and Telegram macOS <7.1 are affected by a Stack Based Overflow in the
Telegram Android <7.1.0 (2090), Telegram iOS <7.1, and Telegram macOS <7.1 are affected by a Heap Buffer Overflow in the
Telegram Desktop (aka tdesktop) 1.3.14, and Telegram 3.3.0.0 WP8.1 on Windows, leaks end-user public and private IP addr
Telegram Web 15.3.1 allows XSS via a certain payload derived from a Target Corporation website. Rated medium severity (C
Telegram Desktop (aka tdesktop) 1.3.16 alpha, when "Use proxy" is enabled, sends credentials and application data in cle
The Telegram app 7.6.2 for iOS allows remote authenticated users to cause a denial of service (application crash) if the
Exploit-DB