An issue was discovered in the Cisco WebEx Extension before 1.0.7 on Google Chrome, the ActiveTouch General Plugin Container before 106 on M
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.
- Published
- Feb 1, 2017
- Updated
- Jun 16, 2026
- EPSS
- 27.2% · 98th percentile
- CWE
- CWE-119
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Report tools
Action score
43
Plan
Add it to your regular patch cycle.
- CVSS
- 35 / 40 · 8.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 8 / 30 · 27.2%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| cisco | activetouch general plugin container | cpe:2.3:a:cisco:activetouch_general_plugin_container |
| cisco | download manager | cpe:2.3:a:cisco:download_manager |
| cisco | gpccontainer class | cpe:2.3:a:cisco:gpccontainer_class |
| cisco | webex | cpe:2.3:a:cisco:webex |
| cisco | webex meetings server | cpe:2.3:a:cisco:webex_meetings_server |
| cisco | webex meeting center | cpe:2.3:a:cisco:webex_meeting_center |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- cisco activetouch general plugin container105
- cisco download manager2.1.0.9
- cisco gpccontainer classup to 10031.6.2017.0125 inclusive
- cisco webexup to 1.0.6 inclusive
- cisco webex meeting center2.6_base
- cisco webex meeting center2.6_mr1
- cisco webex meeting center2.6_mr2
- cisco webex meeting center2.6_mr3
- cisco webex meeting center2.7_base
- cisco webex meeting center2.7_mr1
- cisco webex meeting center2.7_mr2
- cisco webex meeting centert29_base
- cisco webex meeting centert30_base
- cisco webex meeting centert31_base
- cisco webex meetings server2.0_base
- cisco webex meetings server2.0_mr2
- cisco webex meetings server2.0_mr3
- cisco webex meetings server2.0_mr4
- cisco webex meetings server2.0_mr5
- cisco webex meetings server2.0_mr6
Versions reported by the vendor
Affected version ranges reported by the assigning authority (cisco). Independent of NVD's CPE analysis and usually ahead of it.
n/a Cisco WebEx browser extensions
- Cisco WebEx browser extensionsaffected
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
Weaponized
A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.
Evidence
- Metasploit module ×1
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Metasploit module | exploit/windows/browser/cisco_webex_extCisco WebEx Chrome Extension RCE (CVE-2017-3823)exploit | 2017-01-21 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- Metasploit-11 d
- Published
- TodaySep 30, 2026+3528 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- No account or password is required.
- A user must open a link or visit a page.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory BufferCVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Overflow BuffersCAPEC-100likelihood: High · Very High
- Buffer ManipulationCAPEC-123likelihood: High · Very High
- Client-side Injection-induced Buffer OverflowCAPEC-14likelihood: Medium · High
- Filter Failure through Buffer OverflowCAPEC-24likelihood: High · High
- MIME ConversionCAPEC-42likelihood: High · High
- Overflow Binary Resource FileCAPEC-44likelihood: High · Very High
- Buffer Overflow via Symbolic LinksCAPEC-45likelihood: High · High
ATT&CK techniques
—
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- www.securityfocus.com/bid/95737
- www.securitytracker.com/id/1037680
- 0patch.blogspot.com/2017/01/micropatching-remote-code-execution-in.html
- blog.filippo.io/webex-extension-vulnerability/
- bugs.chromium.org/p/project-zero/issues/detail?id=1096
- bugs.chromium.org/p/project-zero/issues/detail?id=1100
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170124-webex
- www.kb.cert.org/vuls/id/909240
Vendor advisories and official records. Exploit/PoC links are deliberately left out.