CVE-2026-53408: Improper Authorization in Handler for Custom URL Scheme in Zoom Workplace before version 7.0.4 for Android and

Q: How do I fix CVE-2026-53408?

meeting software development kit: upgrade to 7.0.3; meeting software development kit: upgrade to 7.0.4; workplace: upgrade to 7.0.3. Exact commands for each OS are on this page.

Q: Is CVE-2026-53408 being exploited?

CVE-2026-53408 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-2026-53408 affect?

CVE-2026-53408 affects meeting software development kit, meeting software development kit, workplace. Severity is high (CVSS 8.1). Improper Authorization in Handler for Custom URL Scheme in Zoom Workplace before version 7.0.4 for Android and before 7.0.3 for iOS may allow an unauthenticated user to conduct an escalation of privilege via network access.

Routine

HIGH 8.1UPGRADEUPGRADEUPGRADE

CVE-2026-53408 is a high-severity flaw (CVSS 8.1) affecting meeting software development kit, meeting software development kit, workplace. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Improper Authorization in Handler for Custom URL Scheme in Zoom Workplace before version 7.0.4 for Android and before 7.0.3 for iOS may allow an unauthenticated user to conduct an escalation of privilege via network access.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 89%)
CISA exploited list	No
Weakness	CWE-939
Published	2026-06-12
Last modified	2026-10-26

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

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-06-12 19:16 UTCPublished CVE record published
2026-10-26 11:10 UTCUpdated Record last modified

zoom meeting software development kit UPGRADE

Affected: < 7.0.3

Fixed in: 7.0.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy meeting-software-development-kit || rpm -q meeting-software-development-kit || meeting-software-development-kit --version

2. UPGRADE to 7.0.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade meeting-software-development-kit

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade meeting-software-development-kit

Note

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

zoom meeting software development kit UPGRADE

Affected: < 7.0.4

Fixed in: 7.0.4

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy meeting-software-development-kit || rpm -q meeting-software-development-kit || meeting-software-development-kit --version

2. UPGRADE to 7.0.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade meeting-software-development-kit

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade meeting-software-development-kit

Note

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

zoom workplace UPGRADE

Affected: < 7.0.3

Fixed in: 7.0.3

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 7.0.3 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade workplace

Note

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

zoom workplace UPGRADE

Affected: < 7.0.4

Fixed in: 7.0.4

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 7.0.4 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade workplace

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-2026-53408?

meeting software development kit: upgrade to 7.0.3; meeting software development kit: upgrade to 7.0.4; workplace: upgrade to 7.0.3. Exact commands for each OS are on this page.

Is CVE-2026-53408 being exploited?

CVE-2026-53408 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-2026-53408 affect?

CVE-2026-53408 affects meeting software development kit, meeting software development kit, workplace. Severity is high (CVSS 8.1). Improper Authorization in Handler for Custom URL Scheme in Zoom Workplace before version 7.0.4 for Android and before 7.0.3 for iOS may allow an unauthenticated user to conduct an escalation of privilege via network access.

How urgent is CVE-2026-53408?

Priority 31/100. High severity

Software pages

Android vulnerabilities · iOS vulnerabilities · Zoom vulnerabilities

References

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