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    CVE-2021-30496

    The Telegram app 7.6.2 for iOS allows remote authenticated users to cause a denial of service (application crash) if the victim pastes an attacker-supplied message (e.g., in the Persian language) into a channel or group. The crash occurs in MtProtoKitFramework. NOTE: the vendor's perspective is that "this behavior can't be considered a vulnerability."

    Published:Apr 20, 2021
    Last Modified:Nov 21, 2024
    EPS:Apr 20, 2021
    EPSS Score:0.00661
    CVSS Score:5.7

    Affected Products

    Vendor
    Telegram
    Product
    Telegram

    Exploits

    https://gist.github.com/raminfp/bf64c2974ee6949787329749148a4b31https://gist.github.com/raminfp/bf64c2974ee6949787329749148a4b31

    Common Weakness Enumeration

    CWE-121 Stack-based Buffer Overflow

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High