CVE-2018-6608
In the WebRTC component in Opera 51.0.2830.55, after visiting a web site that attempts to gather...
CVE-2018-6608 is a medium vulnerability (CVSS 4.3) in Opera Browser, published March 28, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 3.24%, the 88th percentile. No source names a fixed version.
- Severity
- 4.3 MediumCVSS 3.0, NVD
- Exploit chance
- 3.24%EPSS, 88th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
In the WebRTC component in Opera 51.0.2830.55, after visiting a web site that attempts to gather complete client information (such as https://ip.voidsec.com), the browser can disclose a private IP address in a STUN request.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
Affected products
What each source reports
NVD Score used
In the WebRTC component in Opera 51.0.2830.55, after visiting a web site that attempts to gather complete client information (such as https://ip.voidsec.com), the browser can disclose a private IP address in a STUN request.
- Record
CVE-2018-6608- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N - CVSS 2.0
- 4.3 Medium
AV:N/AC:M/Au:N/C:P/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
CVE ListNo score
In the WebRTC component in Opera 51.0.2830.55, after visiting a web site that attempts to gather complete client information (such as https://ip.voidsec.com), the browser can disclose a private IP address in a STUN request.
- Record
CVE-2018-6608- Updated
- 2026-11-02
EUVDEUVD-2018-18355No score
In the WebRTC component in Opera 51.0.2830.55, after visiting a web site that attempts to gather complete client information (such as https://ip.voidsec.com), the browser can disclose a private IP address in a STUN request.
- Record
EUVD-2018-18355- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-qjf3-7m2g-x594
In the WebRTC component in Opera 51.0.2830.55, after visiting a web site that attempts to gather...
In the WebRTC component in Opera 51.0.2830.55, after visiting a web site that attempts to gather complete client information (such as https://ip.voidsec.com), the browser can disclose a private IP address in a STUN request.
- Record
GHSA-qjf3-7m2g-x594- CVSS 3.0
- 4.3 Medium
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N - Weakness
- CWE-200
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
github.com/VoidSec/WebRTC-Leak
voidsec.com/vpn-leak
news.ycombinator.com/item?id=16699270
docs.google.com/spreadsheets/d/1Nm7mxfFvmdn-3Az-BtE5O0BIdbJiIAWUnkoAF_v_0ug/edit?usp=sharing
bleepingcomputer.com/news/security/many-vpn-providers-leak-customers-ip-address-via-webrtc-bug
nvd.nist.gov/vuln/detail/CVE-2018-6608