What is CVE-2018-15715?

CVE-2018-15715 is a critical-severity vulnerability in Zoom, classified under Authentication Bypass by Spoofing. CVSS score: 9.8/10. Published 2018-11-30.

How severe is CVE-2018-15715?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2018-15715 known to be exploited?

4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Improper input validation in Zoom

CVE-2018-15715

Zoom clients on Windows (before version 4.1.34814.1119), Mac OS (before version 4.1.34801.1116), and Linux (2.4.129780.0915 and below) are vulnerable to unauthorized message processing. A remote unauthenticated attacker can spoof UDP messages from a meeting attendee or Zoom server in order to invoke functionality in the target client. This allows the attacker to remove attendees from meetings, spoof messages from users, or hijack shared screens.

EPSS: 0.035 (87.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Zoom — versions Zoom on Windows before version 4.1.34814.1119, Zoom on Mac OS before version 4.1.34801.1116, Zoom on Linux version 2.4.129780.0915 and below.

Weakness classification (CWE)

Public proof-of-concept exploits

References

vulnreport@tenable.com (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2018-15715?: CVE-2018-15715 is a critical-severity vulnerability in Zoom, classified under Authentication Bypass by Spoofing. CVSS score: 9.8/10. Published 2018-11-30.
How severe is CVE-2018-15715?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2018-15715 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.