Malwarebytes
Zoom patches critical annotation flaws after Zoomsday discovery
Part of the CVE-2026-53413 story · since 11 Aug
- Tue 11 Aug, 16:02 UTC. SecurityWeek, first report. Zoom Patches Zero-Click Code Execution Vulnerability.
- Tue 11 Aug, 18:21 UTC. Security Affairs, its first report on the story. Zoom patches critical zero click flaw Zoomsday threatening meetings.
- Wed 12 Aug, 02:31 UTC. SecurityOnline, its first report on the story. Zoom fixes two remote code execution bugs in annotator function.
- Wed 12 Aug, 15:18 UTC. Malwarebytes, its first report on the story. Zoom patches critical annotation flaws after Zoomsday discovery. This article, 4th of 4.
Research has uncovered three critical vulnerabilities in Zoom, dubbed "Zoomsday," that could allow one participant to attack another during meetings via malicious data. These flaws, tracked as CVE-2026-53413, CVE-2026-53414, and CVE-2026-53415, impact annotation features across multiple Zoom platforms, potentially leading to crashes, data leaks, or execution of attacker-controlled code. Zoom rates the severity as high, requiring user interaction for exploitation, contrasting with researchers' critical assessment.
Users are advised to update their Zoom software and implement security measures, such as using passcodes and authentication, to mitigate risks.
How the story developed
4 articles from 4 outlets since 11 Aug. Quiet since 12 Aug. This was the 4th report, 23 hours after the first.
- Tue 11 Aug, 16:02 UTC. SecurityWeek, first report. Zoom Patches Zero-Click Code Execution Vulnerability.
- Tue 11 Aug, 18:21 UTC. Security Affairs, its first report on the story. Zoom patches critical zero click flaw Zoomsday threatening meetings.
- Wed 12 Aug, 02:31 UTC. SecurityOnline, its first report on the story. Zoom fixes two remote code execution bugs in annotator function.
- Wed 12 Aug, 15:18 UTC. Malwarebytes, its first report on the story. Zoom patches critical annotation flaws after Zoomsday discovery. This article, 4th of 4.
- CVE not in KEV
- No CVE
- Larger: an outlet’s first report
- Coverage over time
- Quiet time, folded
Show all 4 articles as a listHide the list
- Tue 11 AugDay 02
- Zoom Patches Zero-Click Code Execution Vulnerability16:02 · SecurityWeek · First report
- Zoom patches critical zero click flaw Zoomsday threatening meetings18:21 · Security Affairs
- Wed 12 AugDay 12
- Zoom fixes two remote code execution bugs in annotator function02:31 · SecurityOnline
- Zoom patches critical annotation flaws after Zoomsday discovery15:18 · Malwarebytes · This article, 4th of 4