High severity · published Apr 17, 2020
CVE-2020-11877
airhost.exe in Zoom Client for Meetings 4.6.11 uses 3423423432325249 as the Initialization Vector (IV) for AES-256 CBC encryption
7.5
CVSS
1.6%
EPSS
No
On KEV
Description
airhost.exe in Zoom Client for Meetings 4.6.11 uses 3423423432325249 as the Initialization Vector (IV) for AES-256 CBC encryption. NOTE: the vendor states that this IV is used only within unreachable code
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.6% · higher than 75% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ME
Meetings · Zoom
4.6.11 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-11877
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-11877
Exploit
https://dev.io/posts/zoomzoo/
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