CVE-2022-42475

CriticalActively exploited (CISA KEV)Known to be used in ransomware campaigns

Description

A heap-based buffer overflow vulnerability [CWE-122] in FortiOS SSL-VPN 7.2.0 through 7.2.2, 7.0.0 through 7.0.8, 6.4.0 through 6.4.10, 6.2.0 through 6.2.11, 6.0.15 and earlier and FortiProxy SSL-VPN 7.2.0 through 7.2.1, 7.0.7 and earlier may allow a remote unauthenticated attacker to execute arbitrary code or commands via specifically crafted requests.

SeverityCritical
CVSS9.8
Exploit probability—
ProductFortinet FortiOS
PublishedJan 2, 2023
First seenJan 2, 2023
Added to KEVDec 13, 2022
Weakness typeCWE-197CWE-197

How to fix

CISA required action

Apply updates per vendor instructions.

CISA due date: Jan 3, 2023
Update
  • fortinet fortios6.0.16, 6.2.12, 6.4.11, 7.0.9, 7.2.3, 6.0.15, 6.4.10, 7.0.8 or later
  • fortinet fortiproxy2.0.12, 7.0.8, 7.2.2 or later

Affected products

ProductAffected versionsFixed in
fortinet fortios5.0.0 ≤ v ≤ 5.0.14, 5.2.0 ≤ v ≤ 5.2.15, 5.4.0 ≤ v ≤ 5.4.13, 5.6.0 ≤ v ≤ 5.6.14, 6.0.0 ≤ v < 6.0.16, 6.2.0 ≤ v < 6.2.12, 6.4.0 ≤ v < 6.4.11, 7.0.0 ≤ v < 7.0.9, 7.2.0 ≤ v < 7.2.3, 6.0.0 ≤ v < 6.0.15, 6.4.0 ≤ v < 6.4.10, 7.0.0 ≤ v < 7.0.86.0.16, 6.2.12, 6.4.11, 7.0.9, 7.2.3, 6.0.15, 6.4.10, 7.0.8
fortinet fortiproxy1.0.0 ≤ v ≤ 1.0.7, 1.1.0 ≤ v ≤ 1.1.6, 1.2.0 ≤ v ≤ 1.2.13, 2.0.0 ≤ v < 2.0.12, 7.0.0 ≤ v < 7.0.8, 7.2.0 ≤ v < 7.2.22.0.12, 7.0.8, 7.2.2

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