Session takeover via unvalidated meeting URL destination
Published Oct 31, 2022 · Updated May 2, 2025
Improper URL parsing in affected Zoom clients before 5.12.2 allows remote attackers to redirect clients to arbitrary network addresses. The meeting-link parser accepts a crafted Zoom meeting URL and uses its unvalidated destination to initiate a connection outside the intended service boundary. Exploitation requires a user to open the malicious URL; the attacker-directed connection enables follow-on attacks, including session takeover.
Summary
What happened
Improper URL parsing in affected Zoom clients before 5.12.2 allows remote attackers to redirect clients to arbitrary network addresses. The meeting-link parser accepts a crafted Zoom meeting URL and uses its unvalidated destination to initiate a connection outside the intended service boundary. Exploitation requires a user to open the malicious URL; the attacker-directed connection enables follow-on attacks, including session takeover.
The record
- CVE
- CVE-2022-28763
- Published
- Oct 31, 2022
- Updated
- May 2, 2025
- Vendor
- Zoom Video Communications, Inc.
- Product
- Zoom Rooms
- Classifications
- CWE-20, CWE-601, T1204.001
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 31, 2022CVE publishedPublication date reported by the CVE source.
- May 2, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=unspecified <5.12.2
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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