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
Published Oct 10, 2018
5.9
MEDIUMCVSS 3.1
EPSS 0.95%
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.
Affected products
No data.
Configuration 2
- 9.0
Configuration 3
- v8
- v8
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:P/I:N/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.95% (0.00947) | 59.74th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.95% (0.00947) | 59.61th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.06% (0.00062) | 27.24th | v3 (v2023.03.01) |
| May 29, 2024 | 0.06% (0.00062) | 26.46th | v3 (v2023.03.01) |
| Apr 11, 2024 | 0.09% (0.00089) | 37.06th | v3 (v2023.03.01) |
| Oct 4, 2023 | 0.13% (0.00130) | 47.42th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.21% (0.00207) | 57.97th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.19% (0.00192) | 55.18th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.83% (0.00833) | 24.58th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.83% (0.00833) | 0.00th | v1 |
References (4)
- http://tinc-vpn.org/security/ Vendor Advisory
- http://www.tinc-vpn.org/git/browse?p=tinc%3Ba=commit%3Bh=e97943b7cc9c851ae36f5a41e2b6102faa74193f
- https://www.debian.org/security/2018/dsa-4312 vendor-advisoryThird Party Advisory
- https://www.starwindsoftware.com/security/sw-20190227-0003/ Third Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://tinc-vpn.org/security/ | Vendor Advisory | |
| http://www.tinc-vpn.org/git/browse?p=tinc%3Ba=commit%3Bh=e97943b7cc9c851ae36f5a41e2b6102faa74193f | ||
| https://www.debian.org/security/2018/dsa-4312 | vendor-advisoryThird Party Advisory | |
| https://www.starwindsoftware.com/security/sw-20190227-0003/ | Third Party Advisory |
Change history (0)
No recorded changes yet.