CVE-2025-46789: Classic buffer overflow in certain Zoom Clients for Windows may allow an authorized user to conduct a denial o

Routine

MEDIUM 6.5MITIGATE

CVE-2025-46789 is a medium-severity flaw (CVSS 6.5) affecting zoom. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Classic buffer overflow in certain Zoom Clients for Windows may allow an authorized user to conduct a denial of service via network access.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.5% (top 54%)
CISA exploited list	No
Weakness	CWE-120
Published	2025-07-10
Last modified	2026-06-17

Publisher (CNA): Zoom Video Communications, Inc. · Vendor: zoom

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-07-10 16:15 UTCPublished CVE record published
2026-06-17 09:26 UTCUpdated Record last modified

zoom zoom MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy zoom || rpm -q zoom || zoom --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-46789?

zoom: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-46789 being exploited?

CVE-2025-46789 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-46789 affect?

CVE-2025-46789 affects zoom. Severity is medium (CVSS 6.5). Classic buffer overflow in certain Zoom Clients for Windows may allow an authorized user to conduct a denial of service via network access.

How urgent is CVE-2025-46789?

Priority 34/100. No elevated risk signals yet.

Software pages

Windows vulnerabilities · Zoom vulnerabilities

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References

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