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No exploitation reported

CVE-2017-3823

No exploitation reported by the sources we read.

  • Published2017-02-01
  • WeaknessCWE-119

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An issue was discovered in the Cisco WebEx Extension before 1.0.7 on Google Chrome, the ActiveTouch General Plugin Container before 106 on Mozilla Firefox, the GpcContainer Class ActiveX control plugin before 10031.6.2017.0126 on Internet Explorer, and the Download Manager ActiveX control plugin before 2.1.0.10 on Internet Explorer. A vulnerability in these Cisco WebEx browser extensions could allow an unauthenticated, remote attacker to execute arbitrary code with the privileges of the affected browser on an affected system. This vulnerability affects the browser extensions for Cisco WebEx Meetings Server and Cisco WebEx Centers (Meeting Center, Event Center, Training Center, and Support Center) when they are running on Microsoft Windows. The vulnerability is a design defect in an application programing interface (API) response parser within the extension. An attacker that can convince an affected user to visit an attacker-controlled web page or follow an attacker-supplied link with an affected browser could exploit the vulnerability. If successful, the attacker could execute arbitrary code with the privileges of the affected browser.

Timeline

dates in UTC
  1. 2017-02-0111:59CVE publishedNVD
  2. 2026-10-2319:23EPSS crossed 10 %FIRST EPSS

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2017-3823?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-3823?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD
Cisco webex meetings server
BranchAffectedFixed in
2.0= 2.0_baseno fix published
2.0= 2.0_mr2no fix published
2.0= 2.0_mr3no fix published
2.0= 2.0_mr4no fix published
2.0= 2.0_mr5no fix published
2.0= 2.0_mr6no fix published
2.0= 2.0_mr7no fix published
2.0= 2.0_mr8no fix published
2.0= 2.0_mr9no fix published
2.5= 2.5_baseno fix published
2.5= 2.5_mr1no fix published
2.5= 2.5_mr2no fix published
Cisco webex meeting center
BranchAffectedFixed in
2.6= 2.6_baseno fix published
2.6= 2.6_mr1no fix published
2.6= 2.6_mr2no fix published
2.6= 2.6_mr3no fix published
2.7= 2.7_baseno fix published
2.7= 2.7_mr1no fix published
2.7= 2.7_mr2no fix published
—= t29_baseno fix published
—= t30_baseno fix published
—= t31_baseno fix published
Cisco activetouch general plugin container
BranchAffectedFixed in
105.x= 105no fix published

3 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Advisories and patches

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • NVDCVSS 3.08.8read 2026-10-23
  • NVDCVSS 2.09.3read 2026-10-23
  • CNAweakness (CWE)CWE-119read 2026-10-23
  • NVDweakness (CWE)CWE-119read 2026-10-23
  • FIRST EPSSEPSS score27.2 %read 2026-10-23

Technical details

CVSS v3 Vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Published
2017-02-01
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2017-3823?

An issue was discovered in the Cisco WebEx Extension before 1.0.7 on Google Chrome, the ActiveTouch General Plugin Container before 106 on Mozilla Firefox, the GpcContainer Class ActiveX control plugin before 10031.6.2017.0126 on Internet Explorer, and the Download Manager ActiveX control plugin before 2.1.0.10 on Internet Explorer. A vulnerability in these Cisco WebEx browser extensions could allow an unauthenticated, remote attacker to execute arbitrary code with the privileges of the affected browser on an affected system. This vulnerability affects the browser extensions for Cisco WebEx Meetings Server and Cisco WebEx Centers (Meeting Center, Event Center, Training Center, and Support Center) when they are running on Microsoft Windows. The vulnerability is a design defect in an application programing interface (API) response parser within the extension. An attacker that can convince an affected user to visit an attacker-controlled web page or follow an attacker-supplied link with an affected browser could exploit the vulnerability. If successful, the attacker could execute arbitrary code with the privileges of the affected browser.

Is CVE-2017-3823 actively exploited?

Active exploitation of CVE-2017-3823 has not been confirmed. Its EPSS score was 27.2% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-3823?

CVE-2017-3823 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

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