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Unrated severityNVD Advisory· Published Aug 11, 2015· Updated Jun 17, 2026

CVE-2015-5965

CVE-2015-5965

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.

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Affected products

2
  • Fortinet/Fortios2 versions
    cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*range: <=4.3.12
    • (no CPE)range: <4.3.13

Patches

Vulnerability mechanics

References

5

News mentions

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