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CVE-2021-1525 Cisco Webex Meetings Server

Affected softwareCisco Webex Meetings Server
Severity6.1 Medium CVSS 3.1 3 scores
WeaknessCWE-601
Published4 Jun 2021
Updated17 Jun 2026

Description

A vulnerability in Cisco Webex Meetings and Cisco Webex Meetings Server could allow an unauthenticated, remote attacker to redirect users to a malicious file. This vulnerability is due to improper validation of URL paths in the application interface. An attacker could exploit this vulnerability by persuading a user to follow a specially crafted URL that is designed to cause Cisco Webex Meetings to include a remote file in the web UI. A successful exploit could allow the attacker to cause the application to offer a remote file to a user, which could allow the attacker to conduct further phishing or spoofing attacks.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 5 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment no assessment published
  • Indexed PoC none indexed
  • EPSS 0.78% chance in 30 days

Waratek protection

Outside Waratek scope

A Java vulnerability, but not one Waratek protects. It affects only Java on a user's desktop (applets, Web Start, JavaFX, the installer), sits in a product the Waratek agent can't be installed into, or is in a package we don't expect in business applications. The decision below says which.

  • Protection none
  • Action not pursued none
  • Review automated Upstream data
  • Record active
Decided by The only affected product being a sealed appliance image, where Java runs but no -javaagent can be attached
Finding This CVE names only products the Waratek agent cannot be installed into (cisco/webex_meetings_server). They ship as sealed appliance images or as native code with no application JVM, so there is no start-up line to add -javaagent to. The vulnerability may well be a Java one; it is permanently out of ARMR's reach rather than outside its subject.

CVSS

6.1 MEDIUM v3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N 3 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 6.1 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N NVD Primary published
CVSS 3.1 4.7 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N psirt@cisco.com Secondary
CVSS 2.0 5.8 none AV:N/AC:M/Au:N/C:P/I:P/A:N NVD Primary

Affected software and releases

Products and versions

2 products, 12 version entries
SourceVendorProductSchemeAffected versions
nvd cisco webex meetings online generic 41.3.5
nvd cisco webex meetings server generic 3.0 · < 3.0 · 3.0:maintenance_release1 · 3.0:maintenance_release2 · 3.0:maintenance_release3 · 4.0 · 4.0:maintenance_release1 · 4.0:maintenance_release2 · 4.0:maintenance_release3 · 4.0:maintenance_release3_security_patch3 · 4.0:maintenance_release3_security_patch4

References

URLTags
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-redirect-XuZFU3PH Vendor Advisory

Timeline

Published2021-06-04By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.