CVE-2017-3823Activetouch General Plugin Container Memory Corruption
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.
Published Feb 1, 2017 · Updated May 12, 2026
Key Facts
Patch immediately- CVE-2017-3823 is a high-severity vulnerability (CVSS 8.8 v3) affecting Activetouch General Plugin Container (Cisco), Download Manager (Cisco), Gpccontainer Class (Cisco) and 4 more products.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 27% probability of exploitation in the next 30 days.
- Fixed versions are available, including Gpccontainer Class 10031.6.2017.0125, Webex 1.0.6.
- Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Scores
CVSS v3
8.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
27%
Higher than 98.0% of all scored CVEs
Exploit maturity
Weaponized
ATLAS score
51/100
Publication score, see How it works
Exploitation Verdict
KEV listed
Not listed
Federal due date
None
No federal due date
Ransomware use
Not reported
Attributed actors
None named
Exploit & Defence Guidance
Exploit maturity
Weaponized
Public exploit code
1
Proof-of-concept links
In-the-wild evidence
0
Reports of active use
Advisories And Exploit References
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.
Affected Products
55 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Activetouch General Plugin ContainerCisco | 105 | n/a |
| Download ManagerCisco | 2.1.0.9 | n/a |
| Gpccontainer ClassCisco | See advisory | 10031.6.2017.0125 |
| WebexCisco | See advisory | 1.0.6 |
| Webex Meeting CenterCisco | 2.6_base, 2.6_mr1, 2.6_mr1-p1, 2.6_mr2, 2.6_mr2-p1, 2.6_mr3, 2.6_mr3-p1, 2.7_base | n/a |
Patched Releases
Gpccontainer Class
10031.6.2017.0125
Webex
1.0.6
Timeline
Publicly disclosed
Feb 1, 2017
Last updated
May 12, 2026
Weakness Type
- CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer
References
- advisorybugs.chromium.org · issues
- advisorytools.cisco.com · cisco-sa-20170124-webex
- advisory95737
- exploitMSF cisco_webex_ext.rb
- other0patch.blogspot.com · micropatching-remote-code-execution-in.html
FAQ
Common Questions.
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 Int…
Affected: Activetouch General Plugin Container (Cisco) versions 105; Download Manager (Cisco) versions 2.1.0.9; Gpccontainer Class (Cisco), among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including Gpccontainer Class 10031.6.2017.0125, Webex 1.0.6.
Brandefense priority: patch immediately, because public exploit code exists for a high-severity flaw.
Is CVE-2017-3823 On Your Attack Surface?
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