CVE-2015-5965
UnknownEPSS 2.07%
Last modified
CVE-2015-5965 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 2.07% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Fortinet | Fortios | <= 4.3.12 |
References
- http://www.fortiguard.com/advisory/FG-IR-15-016/Vendor Advisory
- http://www.fortiguard.com/advisory/FG-IR-15-016/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2015-5965?
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.
How severe is CVE-2015-5965?
Severity scoring for CVE-2015-5965 is pending analysis. The EPSS model estimates a 2.07% probability of exploitation in the next 30 days.
How do I fix CVE-2015-5965?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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Are you affected by CVE-2015-5965?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST