CVE-2021-30496
lowpriority · track · 23EPSS 0.012 · 67 %ileEUUSEPSS · scored 2026-10-22
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."
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.5–5.7
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (7)
External citations — patches, advisories, analysis.
- https://gist.github.com/raminfp/bf64c2974ee6949787329749148a4b31cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-30496cnnvd
- https://t.me/joinchat/bJ9cnUosVh03ZTI0cnnvd
- https://gist.github.com/raminfp/bf64c2974ee6949787329749148a4b31enisa_euvd
- https://t.me/joinchat/bJ9cnUosVh03ZTI0enisa_euvd
- https://gist.github.com/raminfp/bf64c2974ee6949787329749148a4b31ExploitThird Party Advisorynvd
- https://t.me/joinchat/bJ9cnUosVh03ZTI0Vendor Advisorynvd
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