nginx: virtual host confusion
Published Dec 8, 2014
4.3
MEDIUMCVSS 2.0
EPSS 5.65%
Description
nginx 0.5.6 through 1.7.4, when using the same shared ssl_session_cache or ssl_session_ticket_key for multiple servers, can reuse a cached SSL session for an unrelated context, which allows remote attackers with certain privileges to conduct "virtual host confusion" attacks.
Affected products
No data.
Configuration 2
- 7.0
- 8.0
No data.
Red Hat Software Collections
nginx14-nginx
Will not fix
Red Hat Software Collections
nginx16-nginx
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Software Collections | nginx14-nginx | Will not fix | n/a |
| Red Hat Software Collections | nginx16-nginx | Affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:M/Au:N/C:N/I:P/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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (21 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.65% (0.05654) | 92.73th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.68% (0.05679) | 91.97th | v5 (v2026.06.15) |
| Dec 28, 2025 | 2.44% (0.02435) | 84.73th | v4 (v2025.03.14) |
| Dec 27, 2025 | 6.68% (0.06677) | 90.96th | v4 (v2025.03.14) |
| Oct 28, 2025 | 2.44% (0.02435) | 84.60th | v4 (v2025.03.14) |
| Oct 27, 2025 | 5.03% (0.05031) | 89.28th | v4 (v2025.03.14) |
| Oct 1, 2025 | 2.25% (0.02251) | 84.05th | v4 (v2025.03.14) |
| Jul 30, 2025 | 4.71% (0.04714) | 88.97th | v4 (v2025.03.14) |
| Jun 2, 2025 | 3.03% (0.03026) | 86.04th | v4 (v2025.03.14) |
| May 25, 2025 | 0.94% (0.00939) | 75.10th | v4 (v2025.03.14) |
| May 18, 2025 | 3.16% (0.03164) | 86.29th | v4 (v2025.03.14) |
| Mar 30, 2025 | 0.76% (0.00757) | 70.97th | v4 (v2025.03.14) |
| Mar 29, 2025 | 1.87% (0.01874) | 72.11th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.76% (0.00757) | 71.57th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.23% (0.00234) | 62.29th | v3 (v2023.03.01) |
| Jun 21, 2024 | 0.23% (0.00234) | 61.62th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.23% (0.00234) | 59.61th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.05% (0.01055) | 52.13th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.05% (0.01055) | 50.47th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.05% (0.01055) | 48.43th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.05% (0.01055) | 27.52th | v2 (v2022.01.01) |
References (7)
- http://bh.ht.vc/vhost_confusion.pdf
- http://mailman.nginx.org/pipermail/nginx-announce/2014/000147.html mailing-listx_refsource_MLISTVendor Advisory
- http://www.debian.org/security/2014/dsa-3029 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2014-3616 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1142573 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2014-3616
- https://www.cve.org/CVERecord?id=CVE-2014-3616
| Link | Providers | Tags |
|---|---|---|
| http://bh.ht.vc/vhost_confusion.pdf | ||
| http://mailman.nginx.org/pipermail/nginx-announce/2014/000147.html | mailing-listx_refsource_MLISTVendor Advisory | |
| http://www.debian.org/security/2014/dsa-3029 | vendor-advisoryx_refsource_DEBIANThird Party Advisory | |
| https://access.redhat.com/security/cve/CVE-2014-3616 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1142573 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2014-3616 | ||
| https://www.cve.org/CVERecord?id=CVE-2014-3616 |
Change history (0)
No recorded changes yet.