CVE-2025-49463: Insufficient control flow management in certain Zoom Clients for iOS before version 6.4.5 may allow an unauthe

Q: How do I fix CVE-2025-49463?

zoom: upgrade to 6.4.5. Exact commands for each OS are on this page.

Q: Is CVE-2025-49463 being exploited?

CVE-2025-49463 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-49463 affect?

CVE-2025-49463 affects zoom. Severity is medium (CVSS 6.5). Insufficient control flow management in certain Zoom Clients for iOS before version 6.4.5 may allow an unauthenticated user to conduct a disclosure of information via network access.

Q: How urgent is CVE-2025-49463?

Priority 33/100. No elevated risk signals yet.

Routine

MEDIUM 6.5UPGRADE

CVE-2025-49463 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.

Insufficient control flow management in certain Zoom Clients for iOS before version 6.4.5 may allow an unauthenticated user to conduct a disclosure of information via network access.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.5% (top 58%)
CISA exploited list	No
Weakness	CWE-691
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 17:15 UTCPublished CVE record published
2026-06-17 09:31 UTCUpdated Record last modified

zoom zoom UPGRADE

Affected: < 6.4.5

Fixed in: 6.4.5

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 6.4.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade zoom

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade zoom

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2025-49463?

zoom: upgrade to 6.4.5. Exact commands for each OS are on this page.

Is CVE-2025-49463 being exploited?

CVE-2025-49463 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-2025-49463 affect?

CVE-2025-49463 affects zoom. Severity is medium (CVSS 6.5). Insufficient control flow management in certain Zoom Clients for iOS before version 6.4.5 may allow an unauthenticated user to conduct a disclosure of information via network access.

How urgent is CVE-2025-49463?

Priority 33/100. No elevated risk signals yet.

Software pages

iOS vulnerabilities · Zoom vulnerabilities

Related CVEs

CVE-2026-0998 MEDIUM 4.3 UPGRADE UPGRADE Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 and Mattermost Plugin Zoom versions
CVE-2026-0997 MEDIUM 4.3 UPGRADE UPGRADE Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 and Mattermost Plugin Zoom versions
CVE-2025-49464 MEDIUM 6.5 UPGRADE Classic buffer overflow in certain Zoom Clients for Windows may allow an authorised user to conduct a denial o
CVE-2025-49462 LOW 3.5 UPGRADE UPGRADE Cross-site scripting in certain Zoom Clients before version 6.4.5 may allow an authenticated user to conduct
CVE-2025-46789 MEDIUM 6.5 MITIGATE Classic buffer overflow in certain Zoom Clients for Windows may allow an authorized user to conduct a denial o

References

← Back to latest CVEs