Medium severity · published Jul 17, 2021
CVE-2021-36769
A reordering issue exists in Telegram before 7.8.1 for Android, Telegram before 7.8.3 for iOS, and Telegram Desktop before 2.8.8
5.3
CVSS
1.4%
EPSS
No
On KEV
Description
A reordering issue exists in Telegram before 7.8.1 for Android, Telegram before 7.8.3 for iOS, and Telegram Desktop before 2.8.8. An attacker can cause the server to receive messages in a different order than they were sent a client.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.4% · higher than 72% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
TE
Telegram · Telegram
before 7.8.1; before 7.8.3 · source: NVD
TD
Telegram Desktop · Telegram
before 2.8.8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-36769
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-36769
Technical Description
https://mtpsym.github.io
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