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.
CVE-2023-28597
HIGHNVD 8.37.5▼
EchelonGraph scoreMEDIUM confidence
Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2023-07-06. NVD baseline CVSS 8.3; sources differ by 0.8.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
8.3
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 8.3Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.3
- EG Score
- 7.5(medium)
- EPSS
- 40.8%
- KEV
- Not listed
Published
March 27, 2023
Last Modified
February 19, 2025
References (2)
- security@zoomhttps://explore.zoom.us/en/trust/security/security-bulletin/
- af854a3a-2127-422b-91ae-364da2661108https://explore.zoom.us/en/trust/security/security-bulletin/
Frequently asked(5)
What is CVE-2023-28597?
CVE-2023-28597 is a high vulnerability published on March 27, 2023. 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…
When was CVE-2023-28597 disclosed?
CVE-2023-28597 was first published in the National Vulnerability Database on March 27, 2023, with the most recent update on February 19, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-28597 actively exploited?
CVE-2023-28597 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 40.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-28597?
CVE-2023-28597 has a CVSS v3 base score of 8.3 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.5.
How do I remediate CVE-2023-28597?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-28597, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2023-28597
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