CVE-2018-6849
In the WebRTC component in DuckDuckGo 4.2.0, after visiting a web site that attempts to gather complete client information (such as…
- 4.3MediumCVSS base score
- 28.7%Exploitation in 30 daysEPSS · top 1.8% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 2Public exploitsMetasploit, Nuclei and Exploit-DB
Description
In the WebRTC component in DuckDuckGo 4.2.0, 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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list a Metasploit module and an Exploit-DB entry for it. A reference of the record is tagged as an exploit.
Show the exploits3
Metasploit modules1 module
- HTTP Client LAN IP Address Gather (Metasploit module) (opens in a new tab)
auxiliary/gather/browser_lanipleakRank normaldisclosed 5 Sept 2013
Exploit-DB1 entry
- WebRTC - Private IP Leakage (Metasploit) (Exploit-DB entry) (opens in a new tab)
EDB-ID 44403webapps, multiplepublished 5 Apr 2018Not verified
References tagged exploit1 reference
- 44403 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By mitre
- 52 days later
· 52 days later
Published
- 6 years later
· 6 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Medium4.3 | CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N |
- EPSS (exploitation in 30 days)
- 28.7% · top 1.8% of all CVEs (10 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 4.3.
Affected products
n/a
- affected n/a
References
5
- https://github.com/rapid7/metasploit-framework/pull/9538 (opens in a new tab)x_refsource_MISCx_transferred
- https://voidsec.com/vpn-leak/ (opens in a new tab)x_refsource_MISCx_transferred
- 44403 (opens in a new tab)exploitx_refsource_EXPLOIT-DBx_transferred
- https://news.ycombinator.com/item?id=16699270 (opens in a new tab)x_refsource_MISCx_transferred
- https://datarift.blogspot.com/p/private-ip-leakage-using-webrtc.html (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2018-18595 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2018-6849)Record last updated .