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CVE Record

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...

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.

UnknownCVSS not scoredNot KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

FortiOS SSL-VPN before 4.3.13 did not fully verify a TLS message integrity check. A remote attacker could have an easier path to spoof encrypted content. The bundle provides no CVSS score, confirmed exploitation, or detailed fix text beyond vendor advisory references. Exposure is most likely where FortiOS SSL-VPN is enabled on versions before 4.3.13 and reachable by untrusted networks. The source bundle does not identify other affected products or configurations. Treat this as a legacy VPN integrity weakness requiring inventory and upgrade verification. Priority rises if old FortiOS SSL-VPN remains internet-facing or supports sensitive administrative access. Mitigation focus: Identify FortiOS SSL-VPN systems running versions before 4.3.13.; Review Fortinet advisory FG-IR-15-016 for vendor remediation guidance.; Upgrade affected FortiOS installations according to Fortinet guidance..

Prepared

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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0CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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