CVE-2021-30480

Public Exploit

Description

Zoom Chat through 2021-04-09 on Windows and macOS allows certain remote authenticated attackers to execute arbitrary code without user interaction. An attacker must be within the same organization, or an external party who has been accepted as a contact. NOTE: this is specific to the Zoom Chat software, which is different from the chat feature of the Zoom Meetings and Zoom Video Webinars software.

8.5

CVSS

Severity: High

CVSS 3.1 •

CVSS 2.0 •

EPSS 13.21% Top 10%

Vendor Advisory zoom.us Vendor Advisory zoom.us

Affected: n/a n/a

References

Link	Tags
https://blog.malwarebytes.com/exploits-and-vulnerabilities/2021/04/zoom-zero-day-discovery-makes-calls-safer-hackers-200000-richer/	third party advisory
https://twitter.com/thezdi/status/1379855435730149378	third party advisory
https://twitter.com/thezdi/status/1379859851061395459	third party advisory
https://zoom.us/feature/messaging	product vendor advisory
https://www.securityweek.com/200000-awarded-zero-click-zoom-exploit-pwn2own	press/media coverage third party advisory
https://www.zdnet.com/article/critical-zoom-vulnerability-triggers-remote-code-execution-without-user-input/	press/media coverage third party advisory
https://www.zerodayinitiative.com/advisories/ZDI-21-971/	vdb entry third party advisory
https://explore.zoom.us/en/trust/security/security-bulletin/	vendor advisory
https://sector7.computest.nl/post/2021-08-zoom/	third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-30480?: CVE-2021-30480 has been scored as a high severity vulnerability.
How to fix CVE-2021-30480?: To fix CVE-2021-30480, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-30480 being actively exploited in the wild?: It is possible that CVE-2021-30480 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~13% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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