CVE-2019-13449
In the Zoom Client before 4.4.2 on macOS, remote attackers can cause a denial of service ...
In the Zoom Client before 4.4.2 on macOS, remote attackers can cause a denial of service (continual focus grabs) via a sequence of invalid launch?action=join&confno= requests to localhost port 19421.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
In the Zoom Client before 4.4.2 on macOS, remote attackers can cause a denial of service (continual focus grabs) via a sequence of invalid launch?action=join&confno= requests to localhost port 19421.
- Record
CVE-2019-13449- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:N/I:N/A:P - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
In the Zoom Client before 4.4.2 on macOS, remote attackers can cause a denial of service (continual focus grabs) via a sequence of invalid launch?action=join&confno= requests to localhost port 19421.
- Record
CVE-2019-13449- Updated
- 2026-11-02
EUVDEUVD-2019-4922 No score
In the Zoom Client before 4.4.2 on macOS, remote attackers can cause a denial of service (continual focus grabs) via a sequence of invalid launch?action=join&confno= requests to localhost port 19421.
- Record
EUVD-2019-4922- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-574r-4r9p-83rg
In the Zoom Client before 4.4.2 on macOS, remote attackers can cause a denial of service ...
In the Zoom Client before 4.4.2 on macOS, remote attackers can cause a denial of service (continual focus grabs) via a sequence of invalid launch?action=join&confno= requests to localhost port 19421.
- Record
GHSA-574r-4r9p-83rg- CVSS 3.0
- 6.5 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-20
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2019-13449 is a medium vulnerability (CVSS 6.5) in Zoom, published July 9, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.00%, the 80th percentile. No source names a fixed version.
References
medium.com/%40jonathan.leitschuh/zoom-zero-day-4-million-webcams-maybe-an-rce-just-get-them-to-visit-your-website-ac75c83f4ef5
assets.zoom.us/docs/pdf/Zoom+Response+Video-On+Vulnerability.pdf
blog.zoom.us/wordpress/2019/07/08/response-to-video-on-concern
twitter.com/zoom_us/status/1148710712241295361
bugs.chromium.org/p/chromium/issues/detail?id=951540
nvd.nist.gov/vuln/detail/CVE-2019-13449
github.com/advisories/GHSA-574r-4r9p-83rg