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CVE-2017-6753

24
FAUCET Score

CVE-2017-6753 describes a design defect in Cisco WebEx browser extensions for Google Chrome and Mozilla Firefox, affecting Cisco WebEx Meetings Server, WebEx Centers, and WebEx Meetings on Microsoft Windows. This vulnerability allows an unauthenticated, remote attacker to execute arbitrary code with browser privileges if a user visits a malicious webpage. With a CVSS score of 8.8 (High), it presents a significant risk due to its low attack complexity and high impact on confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion and media coverage, indicating awareness within the cybersecurity community.

Impacted Technologies

VendorProductVersion(s)CPE
t30_baseCPE matchmatch criteria
cpe:2.3:a:cisco:webex_event_center:t30_base:*:*:*:*:*:*:*
t31_baseCPE matchmatch criteria
cpe:2.3:a:cisco:webex_event_center:t31_base:*:*:*:*:*:*:*
t32_baseCPE matchmatch criteria
cpe:2.3:a:cisco:webex_event_center:t32_base:*:*:*:*:*:*:*
t30_baseCPE matchmatch criteria
cpe:2.3:a:cisco:webex_meeting_center:t30_base:*:*:*:*:*:*:*
t31_baseCPE matchmatch criteria
cpe:2.3:a:cisco:webex_meeting_center:t31_base:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
5.95%
Probability of exploitation in next 30 days
EPSS Percentile
92.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0595 is in the 92nd percentile among its peer group of 14,848 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, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Vendor Patches (1)

ciscovendor investigatingvia nvd_reference
View patch

References

tools.cisco.com / security/center/content/CiscoSecurityAdvisory/cisco-sa-20170717-webex
Vendor Advisory
securityfocus.com / bid/99614
Third Party AdvisoryVDB Entry
securitytracker.com / id/1038909
Third Party AdvisoryVDB Entry
securitytracker.com / id/1038910
Third Party AdvisoryVDB Entry
securitytracker.com / id/1038911
Third Party AdvisoryVDB Entry