Vulnerability Database

383,371

Total vulnerabilities in the database

CVE-2024-20395 — cisco / webex_teams

Unprotected Transport of Credentials

A vulnerability in the media retrieval functionality of Cisco Webex App could allow an unauthenticated, adjacent attacker to gain access to sensitive session information.

This vulnerability is due to insecure transmission of requests to backend services when the app accesses embedded media, such as images. An attacker could exploit this vulnerability by sending a message with embedded media that is stored on a messaging server to a targeted user. If the attacker can observe transmitted traffic in a privileged network position, a successful exploit could allow the attacker to capture session token information from insecurely transmitted requests and possibly reuse the captured session information to take further actions as the targeted user.

  • Published: Jul 17, 2024
  • Updated: Sep 13, 2026
  • CVE: CVE-2024-20395
  • Severity: Medium
  • Exploit:
  • CISA KEV:

CVSS v3:

  • Severity: Medium
  • Score: 6.4
  • AV:A/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Software Affected versions
cisco / webex_teams = 3.0.13464.0
cisco / webex_teams = 3.0.13538.0
cisco / webex_teams = 3.0.13588.0
cisco / webex_teams = 3.0.14154.0
cisco / webex_teams = 3.0.14234.0
cisco / webex_teams = 3.0.14375.0
cisco / webex_teams = 3.0.14741.0
cisco / webex_teams = 3.0.14866.0
cisco / webex_teams = 3.0.15015.0
cisco / webex_teams = 3.0.15036.0
cisco / webex_teams = 3.0.15092.0
cisco / webex_teams = 3.0.15131.0
cisco / webex_teams = 3.0.15164.0
cisco / webex_teams = 3.0.15221.0
cisco / webex_teams = 3.0.15333.0
cisco / webex_teams = 3.0.15410.0
cisco / webex_teams = 3.0.15485.0
cisco / webex_teams = 3.0.15645.0
cisco / webex_teams = 3.0.15711.0
cisco / webex_teams = 3.0.16040.0
cisco / webex_teams = 3.0.16269.0
cisco / webex_teams = 3.0.16273.0
cisco / webex_teams = 3.0.16285.0
cisco / webex_teams = 4.0
cisco / webex_teams = 4.1
cisco / webex_teams = 4.1.57
cisco / webex_teams = 4.1.92
cisco / webex_teams = 4.2
cisco / webex_teams = 4.2.42
cisco / webex_teams = 4.2.75
cisco / webex_teams = 4.3
cisco / webex_teams = 4.4
cisco / webex_teams = 4.5
cisco / webex_teams = 4.5.224
cisco / webex_teams = 4.6
cisco / webex_teams = 4.6.197
cisco / webex_teams = 4.7.78
cisco / webex_teams = 4.8
cisco / webex_teams = 4.8.170
cisco / webex_teams = 4.9
cisco / webex_teams = 4.9.205
cisco / webex_teams = 4.9.252
cisco / webex_teams = 4.9.269
cisco / webex_teams = 4.10
cisco / webex_teams = 4.10.343
cisco / webex_teams = 4.11.211
cisco / webex_teams = 4.12
cisco / webex_teams = 4.12.236
cisco / webex_teams = 4.13
cisco / webex_teams = 4.13.200
cisco / webex_teams = 4.14
cisco / webex_teams = 4.15
cisco / webex_teams = 4.16
cisco / webex_teams = 4.17
cisco / webex_teams = 4.18
cisco / webex_teams = 4.19
cisco / webex_teams = 4.20
cisco / webex_teams = 42.1.0.169
cisco / webex_teams = 42.1.0.2219
cisco / webex_teams = 42.1.0.21190
cisco / webex_teams = 42.2
cisco / webex_teams = 42.2.0.21338
cisco / webex_teams = 42.2.0.21486
cisco / webex_teams = 42.3
cisco / webex_teams = 42.3.0.21576
cisco / webex_teams = 42.4.1.22032
cisco / webex_teams = 42.5.0.22259
cisco / webex_teams = 42.6
cisco / webex_teams = 42.6.0.22565
cisco / webex_teams = 42.6.0.22645
cisco / webex_teams = 42.7
cisco / webex_teams = 42.7.0.22904
cisco / webex_teams = 42.7.0.23054
cisco / webex_teams = 42.8
cisco / webex_teams = 42.8.0.23214
cisco / webex_teams = 42.8.0.23281
cisco / webex_teams = 42.9
cisco / webex_teams = 42.9.0.23494
cisco / webex_teams = 42.10
cisco / webex_teams = 42.10.0.23814
cisco / webex_teams = 42.10.0.24000
cisco / webex_teams = 42.11
cisco / webex_teams = 42.11.0.24187
cisco / webex_teams = 42.12
cisco / webex_teams = 42.12.0.24485
cisco / webex_teams = 43.1
cisco / webex_teams = 43.1.0.24716
cisco / webex_teams = 43.2
cisco / webex_teams = 43.2.0.25157
cisco / webex_teams = 43.2.0.25211
cisco / webex_teams = 43.3
cisco / webex_teams = 43.3.0.25468
cisco / webex_teams = 43.4
cisco / webex_teams = 43.4.0.25788

Frequently Asked Questions

A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.

CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.

A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.

Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.

Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.

SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.