CVE-2023-28602 json
Zoom for Windows clients prior to 5.13.5 contain an improper verification of cryptographic signature vulnerability.
published 2023-06-13 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-32272
- cvss
- 2.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 24%
- public exploits
- 0
- none known
Summary
Zoom for Windows clients prior to 5.13.5 contain an improper verification of cryptographic signature vulnerability. A malicious user may potentially downgrade Zoom Client components to previous versions.
Patch / fix
- zoom zoom 5.13.5
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 22 mo ago
Exploit prediction
0.31% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 2.8 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:N |
| NVD | 3.1 | 7.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N |
Affected products
- Zoom Video Communications, Inc. Zoom for Windows Client
Classification
- Weakness
-
- CWE-347 Improper Verification of Cryptographic Signature
References
-
explore.zoom.us
/en/trust/security/security-bulletin/
vendor-advisory
Sources
- CVE List CVE-2023-28602
- NVD CVE-2023-28602
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