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HIGH · 7.1

CVE-2021-26088

An improper authentication vulnerability in FSSO Collector version 5.0.295 and below may allow an unauthenticated user to bypass a FSSO firewall policy and access the protected network via sending spe...

Vulnerability Description

An improper authentication vulnerability in FSSO Collector version 5.0.295 and below may allow an unauthenticated user to bypass a FSSO firewall policy and access the protected network via sending specifically crafted UDP login notification packets.

CVSS Score

7.1

HIGH

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW

Affected Products

VendorProductVersions
FortinetFortinet Single Sign-On< 6.4.6

Related Weaknesses (CWE)

CWE-287

References

FAQ

What is CVE-2021-26088?

CVE-2021-26088 is a vulnerability with a CVSS score of 7.1 (HIGH). An improper authentication vulnerability in FSSO Collector version 5.0.295 and below may allow an unauthenticated user to bypass a FSSO firewall policy and access the protected network via sending spe...

How severe is CVE-2021-26088?

CVE-2021-26088 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-26088?

Check the references section above for vendor advisories and patch information. Affected products include: Fortinet Fortinet Single Sign-On.