How severe is CVE-2014-3616?

CVE-2014-3616 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2014-3616 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2014-3616?

CVE-2014-3616 primarily affects F5 Nginx. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2014-3616?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2014-3616 published?

CVE-2014-3616 was published on 2014-12-08 and last updated on 2026-06-17.

CVE-2014-3616

CVE-2014-3616 is a medium-severity vulnerability in F5 Nginx with a CVSS 2.0 base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-613.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-613
Affected product: F5 Nginx
Published: 2014-12-08
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2014-3616?: 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.
How severe is CVE-2014-3616?: CVE-2014-3616 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2014-3616 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2014-3616?: CVE-2014-3616 primarily affects F5 Nginx. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2014-3616?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2014-3616 published?: CVE-2014-3616 was published on 2014-12-08 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:a:f5:nginx:*:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*

More vulnerabilities in F5 Nginx

CVE-2017-20005 — Critical (CVSS 9.8): NGINX before 1.13.6 has a buffer overflow for years that exceed four digits, as demonstrated by a file with a…
CVE-2016-0746 — Critical (CVSS 9.8): Use-after-free vulnerability in the resolver in nginx 0.6.18 through 1.8.0 and 1.9.x before 1.9.10 allows remote…
CVE-2009-3555 — Critical (CVSS 9.8): The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft Internet Information Services…
CVE-2016-1247 — High (CVSS 7.8): The nginx package before 1.6.2-5+deb8u3 on Debian jessie, the nginx packages before 1.4.6-1ubuntu3.6 on Ubuntu 14.04…
CVE-2021-23017 — High (CVSS 7.7): A security issue in nginx resolver was identified, which might allow an attacker who is able to forge UDP packets from…
CVE-2023-44487 — High (CVSS 7.5): The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset…

All CVEs affecting F5 Nginx →

Other CWE-613 (Insufficient Session Expiration) vulnerabilities

CVE-2024-8888 — Critical (CVSS 10.0): An attacker with access to the network where CIRCUTOR Q-SMT is located in its firmware version 1.0.4, could steal the…
CVE-2026-46455 — Critical (CVSS 9.8): Insufficient Session Expiration vulnerability in Apache Camel Keycloak Component. The camel-keycloak security helper…
CVE-2026-21622 — Critical (CVSS 9.8): Insufficient Session Expiration vulnerability in hexpm hexpm/hexpm ('Elixir.Hexpm.Accounts.PasswordReset' module)…
CVE-2025-59786 — Critical (CVSS 9.8): 2N Access Commander version 3.4.2 and prior improperly invalidates session tokens, allowing multiple session cookies to…
CVE-2026-26342 — Critical (CVSS 9.8): Tattile Smart+, Vega, and Basic device families firmware versions 1.181.5 and prior implement an authentication token…
CVE-2026-1435 — Critical (CVSS 9.8): Not properly invalidated session vulnerability in Graylog Web Interface, version 2.2.3, due to incorrect management of…

Browse all CWE-613 (Insufficient Session Expiration) vulnerabilities →

Threat intelligence

Threat-intel indicators referencing this CVE:

198.199.94.79 (ipv4-addr)