CVE-2020-3501: cisco cisco webex meetings Improper Input Validation
Vulnerability summary
CVE-2020-3501 is a medium (CVSS 4.1) Improper Input Validation vulnerability in cisco cisco webex meetings. EPSS estimates a 1.02% chance of exploitation in the next 30 days, higher than 62.7% of scored vulnerabilities.
Timeline
- 17-08-2020PublishedVulnerability first disclosed.
- 13-11-2024Last modifiedVulnerability information updated.
Description
Multiple vulnerabilities in the user interface of Cisco Webex Meetings Desktop App could allow an authenticated, remote attacker to obtain restricted information from other Webex users. These vulnerabilities are due to improper input validation of parameters returned to the application from a web site. An attacker with a valid Webex account could exploit these vulnerabilities by persuading a user to follow a URL that is designed to return malicious path parameters to the affected software. A successful exploit could allow the attacker to obtain restricted information from other Webex users.
CVSS metrics
3 scores · 2 sources · 2 versions- NVDNIST4.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N
EPSS trend
Probability
1.02%
Chance of exploitation in the next 30 days
Percentile
63%
Versus all other CVEs
30-day change
0.00 pp
From 1.02% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Cisco3 products
- cisco webex meetingsn/a
- webex_meetings< 39.5.24 | ≥ 40.4.0, < 40.4.6 | ≥ 40.4.10, < 40.6.0 | 39.7.4
- webex_meetings_server3.0 | 3.0:maintenance_release1 | 3.0:maintenance_release2 | 3.0:maintenance_release3 | 4.0 | 4.0:maintenance_release1 | 4.0:maintenance_release2
1 vendor · 3 products
References
1 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-client-g3zevBcpVendor AdvisoryX Refsource CISCO