Integer Overflow Vulnerability in Fortinet Products
CVE-2021-42755

4.3MEDIUM

Key Information:

Vendor

Fortinet
Status
Fortinet Fortiswitch, Fortirecorder, Fortivoiceenterprise, FortiOS, Fortiproxy
Vendor
CVE Published:
18 July 2022

What is CVE-2021-42755?

An integer overflow vulnerability in several Fortinet products, including FortiSwitch, FortiRecorder, FortiOS, FortiProxy, and FortiVoiceEnterprise, may allow an unauthenticated network-adjacent attacker to exploit the dhcpd daemon, potentially resulting in a denial of service. This could enable attackers to crash the service, disrupting network activities.

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Affected Version(s)

Fortinet FortiSwitch, FortiRecorder, FortiVoiceEnterprise, FortiOS, FortiProxy FortiSwitch 7.0.2 and below, 6.4.9 and below, 6.2.x, 6.0.x; FortiRecorder 6.4.2 and below, 6.0.10 and below; FortiOS 7.0.2 and below, 6.4.8 and below, 6.2.10 and below, 6.0.x; FortiProxy 7.0.0, 2.0.6 and below, 1.2.x, 1.1.x, 1.0.x; FortiVoiceEnterprise 6.4.3 and below, 6.0.10 and below

References

https://fortiguard.com/psirt/FG-IR-21-155
x_refsource_CONFIRM

CVSS V3.1

Score:
4.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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