MEDIUM
CVE-2018-16758
CWE-306Published: October 10, 2018· Updated: Jun 17, 2026
5.9
CVSS v3.1
Official Description
Missing message authentication in the meta-protocol in Tinc VPN version 1.0.34 and earlier allows a man-in-the-middle attack to disable the encryption of VPN packets.
Technical Analysis
CVE-2018-16758 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 5.9.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Vendors & Products
Debian1 product(s)
debian linux
starwindsoftware1 product(s)
starwind virtual san
tinc-vpn1 product(s)
tinc
Source: NVD CPE · 3 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
ADVISORYhttp://tinc-vpn.org/security/
ADVISORYhttp://tinc-vpn.org/security/
All References (8)
→
http://tinc-vpn.org/security/Vendor Advisory
→
https://www.debian.org/security/2018/dsa-4312Third Party Advisory
→
https://www.starwindsoftware.com/security/sw-20190227-0003/Third Party Advisory
→
http://tinc-vpn.org/security/Vendor Advisory
→
https://www.debian.org/security/2018/dsa-4312Third Party Advisory
→
https://www.starwindsoftware.com/security/sw-20190227-0003/Third Party Advisory
Quick Facts
CVE IDCVE-2018-16758
CVSS Score5.9 / 10
SeverityMEDIUM
WeaknessCWE-306
CISA KEVNo
Affected3 vendor(s)
PublishedOct 10, 2018
Related CVEs (CWE-306)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2018-16758 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.