Zoom is widely used across organizations; an RCE in the annotator could allow remote compromise of user endpoints and is broadly impactful.
CVE-2026-53415
Use-after-free in Zoom annotator enables remote code execution by a meeting participant.
Is CVE-2026-53415 being exploited?
Not confirmed. CVE-2026-53415 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.55% probability of exploitation in the next 30 days.
How severe is CVE-2026-53415?
CVE-2026-53415 is rated High with a CVSS score of 8.3. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-53415?
Yes. A fix has been recorded for CVE-2026-53415. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-53415 affect?
CVE-2026-53415 affects Zoom Clients (annotator feature). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-53415?
Disable annotator/limit participant annotations and apply vendor patch when released.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Attacker meeting participant can trigger use-after-free in the annotator to achieve remote code execution on another participant's Zoom client.
Immediate action required
- affectedsee references
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.