Skip to main content

CVE detail

CVE-2020-3419

A vulnerability in Cisco Webex Meetings and Cisco Webex Meetings Server could allow an unauthenticated, remote attacker to join a Webex session without appearing on the participant list. This vulnerability is due to improper handling of authentication tokens by a vulnerable Webex site. An attacker could exploit this vulnerability by sending crafted requests to a vulnerable Cisco Webex Meetings or Cisco Webex Meetings Server site. A successful exploit requires the attacker to have access to join a Webex meeting, including applicable meeting join links and passwords. The attacker could then exploit this vulnerability to join meetings, without appearing in the participant list, while having full access to audio, video, chat, and screen sharing capabilities.

CVSS 6.5 · MediumBuzz score 21.9

Buzz score

Why this CVE is surfacing

Buzz score total 21.9

This all-time snapshot uses the same composite formula as Trending across a 30-year evidence window, rather than a current rolling window.

Buzz score components · mention 13.9 · diversity 8.0 · KEV 0.0 · OTX 0.0 · PoC 0.0
Mention score
13.9
3 evidence mentions in the snapshot
Diversity score
8.0
3 sources across 1 categories
KEV score
0.0
No KEV entry observed
OTX score
0.0
0 OTX pulses
PoC score
0.0
0 repos · best confidence N/A
Best PoC traction
0
Maximum stars on a matched PoC repo

Why it matters now

Mention timeline

Total mentions
0
within the 30d window
Peak daily
0
highest bucket

Evidence

Source links by recency

Newest mentions first
3 source links · newest first
  • Cisco has fixed three bugs in its Cisco Webex video conferencing offering that may allow attackers to: Join Webex meetings without appearing in the participant list (CVE-2020-3419) Covertly maintain an audio connection to a Webex meeting after being expelled from it (CVE-2020-3471) Gain access to information (name, email, IP address, device info) on meeting attendees without being admitted to the meeting (CVE-2020-3441) About the Cisco Webex vulnerabilities The three flaws were discovered by IBM researchers, … More →

    newswww.helpnetsecurity.comNov 19, 2020, 12:37 PM
  • Cisco this week announced the availability of software updates that address multiple vulnerabilities across several products, including bugs leading to unauthorized access to Webex meetings.

    newswww.securityweek.comNov 19, 2020, 11:54 AM
  • Cisco has addressed three flaws in Webex Meetings that would have allowed unauthenticated remote attackers to join ongoing meetings as ghost participants. Cisco has addressed three vulnerabilities in Webex Meetings (CVE-2020-3441, CVE-2020-3471, and CVE-2020-3419) that would have allowed unauthenticated remote attackers to join ongoing meetings as ghost participants. “A vulnerability in Cisco Webex Meetings and Cisco Webex Meetings Server […]

    newssecurityaffairs.comNov 18, 2020, 10:32 PM

Exploit code

Public exploit repository references

Public PoC repositories are third-party, potentially unsafe artifacts. Treat their code as untrusted and use it only on authorized systems in an isolated, least-privilege environment. cvebuzz does not execute the code or verify that an exploit works.

0 repository references · best confidence N/A · max 0 stars
No public PoC repositories have been matched yet.

Related records

Similar CVEs

6 related CVEs with shared weakness or product evidence
  • CVE-2026-53753

    Crawl4AI is an open-source LLM friendly web crawler & scraper. Prior to 0.8.7, the _safe_eval_expression() function in the computed fields feature uses an AST validator that only…

    CVSS 9.8 · Critical
    Public PoC observed1 mention
  • CVE-2026-48775

    LangGraph SQLite Checkpoint is an implementation of LangGraph CheckpointSaver that uses SQLite DB (both sync and async, via aiosqlite). In versions 4.1.0 and prior, the JsonPlusSe…

    CVSS 6.8 · Medium
  • CVE-2026-47210

    vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, a sandbox escape vulnerability in vm2 allows arbitrary code execution in the host process when untrusted cod…

    CVSS 9.8 · Critical
    3 mentions
  • CVE-2026-47208

    vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, VM2 suffers from a sandbox breakout vulnerability. This allows attackers to write code which can escape from…

    CVSS 10.0 · Critical
    3 mentions
  • CVE-2026-47137

    vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, the fix for GHSA-8hg8-63c5-gwmx (CVE-2023-37903) introduced a check in nodevm.js line 263 that blocks the co…

    CVSS 10.0 · Critical
    5 mentions
  • CVE-2026-47131

    vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, by combining Buffer.call.call({}.__lookupGetter__, Buffer, "__proto__"), Buffer.call.call({}.__lookupSetter_…

    CVSS 10.0 · Critical
    3 mentions