CVE-2020-3501

lowpriority · track · 16EPSS 0.010 · 63 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.02% (63rd) EPSS

CVSS 3.5 · low

Is it mine?

13 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cisco_csaf

EPSS · scored 2026-10-27

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.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedCisco Webex Meetingscisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com

cvss

Technical severity, 0–10. One row per scoring source.

4.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.5–4.1

v2.03.5lowAV:N/AC:M/Au:S/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 6.8 · impact 2.9

v3.14.1mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:Nprimary · NVD / NIST USexploitability 2.3 · impact 1.4

v3.14.1mediumAV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:Nsecondary · FSTEC (BDU) RU

v3.14.1mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:Nsecondary · ENISA EU

v3.14.1mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:Nsecondary · psirt@cisco.com USexploitability 2.3 · impact 1.4

v3.13.8lowCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.14.1mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:Nsecondary · Cisco PSIRT US

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimaryCWE-20US

affected products (13)

Products and version ranges known to be affected.

Cisco Cisco Webex Meetingsall versionscisco_csafUS
Cisco Cisco Webex Meetings≤ n/aenisa_euvdEU
Cisco Systems Inc. Cisco WebEx Meetings Server≤ 3.0 MR3 Patch 3fstec_bduRU
Cisco Systems Inc. Cisco WebEx Meetings Server≤ 4.0 MR3 Patch 2fstec_bduRU
Cisco Systems Inc. Cisco Webex Meetings≤ 40.6.0fstec_bduRU
Cisco Systems Inc. Cisco Webex Meetings≤ 40.4.6fstec_bduRU
Cisco Systems Inc. Cisco Webex Meetings≤ 39.5.24fstec_bduRU
cisco webex meetings< 39.5.24nvdUScpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:*:*:*
cisco webex meetings= 39.7.4nvdUScpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:*:*:*
cisco webex meetings40.4.0 → 40.4.6nvdUScpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:*:*:*
cisco webex meetings40.4.10 → 40.6.0nvdUScpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:*:*:*
cisco webex meetings server= 3.0nvdUScpe:2.3:a:cisco:webex_meetings_server:*:*:*:*:*:*:*:*
cisco webex meetings server= 4.0nvdUScpe:2.3:a:cisco:webex_meetings_server:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

cisco-sa-webex-client-g3zevBcpCisco Webex Meetings Desktop App Information Disclosure Vulnerabilities2020-08-05csaf · cisco_csafUS
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. Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-client-g3zevBcp ["https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-client-g3zevBcp"]

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisco_csaf nvd NVD CVE.org MITRE

published 2020-08-17modified 2026-06-17

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+25188 more

references (6)

External citations — patches, advisories, analysis.

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