CVE-2023-28597 [High] | RCE in Rooms

Zoom clients prior to 5.13.5 contain an improper trust boundary implementation vulnerability. If a victim saves a local recording to an SMB location and later opens it using a link from Zoom’s web portal, an attacker positioned on an adjacent network to the victim client could set up a malicious SMB server to respond to client requests, causing the client to execute attacker controlled executables. This could result in an attacker gaining access to a user's device and data, and remote code execution.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	0.63%	0.52%	-0.11%
2	2026-04-15	0.88%	0.63%	-0.25%
3	2026-04-14	—	0.88%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

0.63%

0.52%

-0.11%

2026-04-15

0.88%

0.63%

-0.25%

2026-04-14

—

0.88%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
8.3	3.1	HIGH	`CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H` Click to expand Attack vector (AV:A) Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet. Attack complexity (AC:H) Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. 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.	1.6	6.0	[email protected]
7.5	3.1	HIGH	`CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:A) Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet. Attack complexity (AC:H) Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. 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.	1.6	5.9	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

8.3

3.1

HIGH

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

Attack vector (AV:A): Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:H): Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
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.

1.6

6.0

[email protected]

7.5

3.1

HIGH

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

Attack vector (AV:A): Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:H): Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
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.

1.6

5.9

[email protected]

Affected software / configurations for CVE-2023-28597

Vendor	Product	Version	Raw CPE
zoom	rooms	< 5.13.5	cpe:2.3:a:zoom:rooms::::::android::*
zoom	rooms	< 5.13.5	cpe:2.3:a:zoom:rooms::::::iphone_os::*
zoom	rooms	< 5.13.5	cpe:2.3:a:zoom:rooms::::::linux_kernel::*
zoom	rooms	< 5.13.5	cpe:2.3:a:zoom:rooms::::::macos::*
zoom	rooms	< 5.13.5	cpe:2.3:a:zoom:rooms::::::windows::*
zoom	zoom	< 5.13.5	cpe:2.3:a:zoom:zoom::::::android::*
zoom	zoom	< 5.13.5	cpe:2.3:a:zoom:zoom::::::iphone_os::*
zoom	zoom	< 5.13.5	cpe:2.3:a:zoom:zoom::::::linux_kernel::*
zoom	zoom	< 5.13.5	cpe:2.3:a:zoom:zoom::::::macos::*
zoom	zoom	< 5.13.5	cpe:2.3:a:zoom:zoom::::::windows::*
zoom	virtual_desktop_infrastructure	< 5.13.10	cpe:2.3:a:zoom:virtual_desktop_infrastructure::::::::

References for CVE-2023-28597

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

URL

CVE-2023-28597 | Improper trust boundary implementation for SMB in Zoom Clients

Exploit prediction scoring system (EPSS) score for CVE-2023-28597

Common vulnerability scoring system (CVSS) metrics for CVE-2023-28597

Weakness enumeration for CVE-2023-28597

Affected software / configurations for CVE-2023-28597

References for CVE-2023-28597