CVE-2022-28763 [High] | Input Validation Bypass in Meetings

The Zoom Client for Meetings (for Android, iOS, Linux, macOS, and Windows) before version 5.12.2 is susceptible to a URL parsing vulnerability. If a malicious Zoom meeting URL is opened, the malicious link may direct the user to connect to an arbitrary network address, leading to additional attacks including session takeovers.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.88%	1.13%	+0.26%
2	2026-04-26	1.07%	0.88%	-0.20%
3	2026-03-04	—	1.07%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.88%

1.13%

+0.26%

2026-04-26

1.07%

0.88%

-0.20%

2026-03-04

—

1.07%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
8.8	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:R) A real person has to do something—click, install, enable—otherwise it doesn’t land. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	2.8	5.9	[email protected]
9.6	3.1	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:R) A real person has to do something—click, install, enable—otherwise it doesn’t land. Scope (S:C) Breaking this can reach past the original component and bite other resources—bigger blast radius. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	2.8	6.0	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

8.8

3.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R): A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

2.8

5.9

[email protected]

9.6

3.1

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H Click to expand

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R): A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C): Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:H): They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

2.8

6.0

[email protected]

Affected software / configurations for CVE-2022-28763

Vendor	Product	Version	Raw CPE
zoom	meetings	< 5.12.2	cpe:2.3:a:zoom:meetings::::::android::*
zoom	meetings	< 5.12.2	cpe:2.3:a:zoom:meetings::::::iphone_os::*
zoom	meetings	< 5.12.2	cpe:2.3:a:zoom:meetings::::::linux::*
zoom	meetings	< 5.12.2	cpe:2.3:a:zoom:meetings::::::macos::*
zoom	meetings	< 5.12.2	cpe:2.3:a:zoom:meetings::::::windows::*
zoom	rooms_for_conference_rooms	< 5.12.2	cpe:2.3:a:zoom:rooms_for_conference_rooms::::::android::*
zoom	rooms_for_conference_rooms	< 5.12.2	cpe:2.3:a:zoom:rooms_for_conference_rooms::::::iphone_os::*
zoom	rooms_for_conference_rooms	< 5.12.2	cpe:2.3:a:zoom:rooms_for_conference_rooms::::::linux::*
zoom	rooms_for_conference_rooms	< 5.12.2	cpe:2.3:a:zoom:rooms_for_conference_rooms::::::macos::*
zoom	rooms_for_conference_rooms	< 5.12.2	cpe:2.3:a:zoom:rooms_for_conference_rooms::::::windows::*
zoom	virtual_desktop_infrastructure	< 5.12.2	cpe:2.3:a:zoom:virtual_desktop_infrastructure::::::windows::*

References for CVE-2022-28763

URL	Tags
https://explore.zoom.us/en/trust/security/security-bulletin/	Vendor Advisory

URL

CVE-2022-28763 | Improper URL parsing in Zoom Clients

Exploit prediction scoring system (EPSS) score for CVE-2022-28763

Common vulnerability scoring system (CVSS) metrics for CVE-2022-28763

Weakness enumeration for CVE-2022-28763

Affected software / configurations for CVE-2022-28763

References for CVE-2022-28763