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CVE-2020-3603

20
FAUCET Score

CVE-2020-3603 describes multiple vulnerabilities in Cisco Webex Network Recording Player for Windows and Cisco Webex Player for Windows, allowing arbitrary code execution due to insufficient validation of ARF or WRF recording files. An attacker could exploit this by tricking a user into opening a malicious file, leading to code execution with the user's privileges. With a CVSS score of 7.8 (HIGH), the attack requires user interaction (UI:R) but has low attack complexity (AC:L) and local access (AV:L), resulting in high impact to confidentiality, integrity, and availability. Currently, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
< 40.6.11CPE matchmatch criteria
cpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:*:*:*
>= 40.7.0, < 40.8.0CPE matchmatch criteria
cpe:2.3:a:cisco:webex_meetings:*:*:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:a:cisco:webex_meetings_server:3.0:-:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release1:*:*:*:*:*:*
3.0CPE matchmatch criteria
cpe:2.3:a:cisco:webex_meetings_server:3.0:maintenance_release2:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
2.51%
Probability of exploitation in next 30 days
EPSS Percentile
83.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0251 is in the 83rd percentile among its peer group of 11,621 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-webex-nbr-NOS6FQ24
Vendor Advisory
zerodayinitiative.com / advisories/ZDI-20-1361
Third Party AdvisoryVDB Entry