What’s Vulnerable › Vulnerabilities

CVE-2015-5965

• Severity: medium (CVSS 5.0 v2.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2015-08-11 · updated 2026-06-17
• Weakness: CWE-20

Description

The SSL-VPN feature in Fortinet FortiOS before 4.3.13 only checks the first byte of the TLS MAC in finished messages, which makes it easier for remote attackers to spoof encrypted content via a crafted MAC field.

Affected products

• Fortinet FortiOS (FortiGate): through 4.3.12

References

• http://www.fortiguard.com/advisory/FG-IR-15-016/
• http://www.securityfocus.com/bid/76065
• http://www.securitytracker.com/id/1033256
• https://security.gentoo.org/glsa/201508-01
• https://vivaldi.net/en-US/blogs/entry/the-poodle-has-friends
• http://www.fortiguard.com/advisory/FG-IR-15-016/
• http://www.securityfocus.com/bid/76065
• http://www.securitytracker.com/id/1033256
• https://security.gentoo.org/glsa/201508-01
• https://vivaldi.net/en-US/blogs/entry/the-poodle-has-friends

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