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01 Record

CVE-2022-23439

A externally controlled reference to a resource in another sphere vulnerability in Fortinet allows attacker to poison web caches via crafted HTTP requests, where the `Host` header points to an

MediumPUBLISHEDCNA: fortinet
CNA base score4.1 CVSS v3.xCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C
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02 Description

A externally controlled reference to a resource in another sphere vulnerability in Fortinet allows attacker to poison web caches via crafted HTTP requests, where the `Host` header points to an

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.44% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 38.7% of scored records. A rank, not a probability.
NVD base score
6.1 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2025-01-22 09:10Z1 YR AGO
Last updated
2026-01-14 13:06Z9 MO AGO
Reserved
2022-01-19
Assigning CNA
fortinet
Record state
PUBLISHED
Severity
Medium (CVSS 4.1)
CNA CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C
Weaknesses
  • CWE-610Externally Controlled Reference to a Resource in Another SphereClass
Data version
5.2
Document digest
707e6561549138c965b9e2e63c3613c5bdc497f7533abe127df9241c2d067f6b

05 Affected products

VendorProductVersionsPlatforms
FortinetFortiTester7.2.0 to 7.2.1, 7.1.0 to 7.1.1, 7.0.0, 4.2.0 to 4.2.1, 4.1.0 to 4.1.1, 4.0.0, 3.9.0 to 3.9.2, 3.8.0, 3.7.0 to 3.7.1, 3.6.0, 3.5.0 to 3.5.1, 3.4.0, 3.3.0 to 3.3.1—
FortinetFortiOS7.2.0, 7.0.0 to 7.0.5, 6.4.0 to 6.4.16, 6.2.0 to 6.2.17, 6.0.0 to 6.0.18, 6.4.0 to < 6.4.*—
FortinetFortiRecorder6.4.0 to 6.4.2, 6.0.0 to 6.0.10, 2.7.0 to 2.7.7, 2.6.0 to 2.6.3—
FortinetFortiNDR7.2.0, 7.1.0, 7.0.0 to 7.0.7, 1.5.0 to 1.5.3, 1.4.0, 1.3.0 to 1.3.1, 1.2.0, 1.1.0—
FortinetFortiADC7.0.0 to 7.0.1, 6.2.0 to 6.2.3, 6.1.0 to 6.1.6, 6.0.0 to 6.0.4, 5.4.0 to 5.4.5, 5.3.0 to 5.3.7, 5.2.0 to 5.2.8, 5.1.0 to 5.1.7, 5.0.0 to 5.0.4—
FortinetFortiManager7.4.0 to 7.4.3, 7.2.0 to 7.2.11, 7.0.0 to 7.0.15, 6.4.0 to 6.4.15, 6.2.0 to 6.2.13—
FortinetFortiVoice7.0.0 to 7.0.1, 6.4.0 to 6.4.8, 6.0.0 to 6.0.11—
FortinetFortiSOAR on-premise7.2.0 to 7.2.2, 7.0.0 to 7.0.3, 6.4.3 to 6.4.4, 6.4.0 to 6.4.1—
FortinetFortiDDoS5.5.0 to 5.5.1, 5.4.0 to 5.4.3, 5.3.0 to 5.3.2, 5.2.0, 5.1.0, 5.0.0, 4.7.0, 4.6.0, 4.5.0—
FortinetFortiWLC8.6.0 to 8.6.7, 8.5.0 to 8.5.5, 8.4.4 to 8.4.8, 8.4.0 to 8.4.2—
FortinetFortiAnalyzer7.4.0 to 7.4.2, 7.2.0 to 7.2.11, 7.0.0 to 7.0.15, 6.4.0 to 6.4.15, 6.2.0 to 6.2.13—
FortinetFortiPortal6.0.0 to 6.0.9—
FortinetFortiAuthenticator6.4.0 to 6.4.1, 6.3.0 to 6.3.3, 6.2.0 to 6.2.2, 6.1.0 to 6.1.3, 6.0.0 to 6.0.8, 5.5.0, 5.4.0 to 5.4.1, 5.3.0 to 5.3.1, 5.2.0 to 5.2.2, 5.1.0 to 5.1.2—
FortinetFortiMail7.0.0 to 7.0.3, 6.4.0 to 6.4.8, 6.2.0 to 6.2.9, 6.0.0 to 6.0.12, 5.4.0 to 5.4.12—
FortinetFortiDDoS-F6.3.0 to 6.3.3, 6.2.0 to 6.2.3, 6.1.0 to 6.1.5—
FortinetFortiSwitch7.0.0 to 7.0.4, 6.4.0 to 6.4.10, 6.2.0 to 6.2.8, 6.0.0 to 6.0.7—
FortinetFortiProxy7.0.0 to 7.0.4, 2.0.0 to 2.0.14, 1.2.0 to 1.2.13, 1.1.0 to 1.1.6, 1.0.0 to 1.0.7—

06 References

07 Remediation

FortiOS Administrative Interface Upgrade to FortiOS version 7.0.6 and above, Upgrade to FortiOS version 7.2.1 and above. AND Set the `admin-host` property to the device hostname, which will disable `Host redirection`: config system global set admin-host "Administrative host for HTTP and HTTPs. When set, will be used in lieu of the client's Host header for any redirection" SSLVPN interface Upgrade to FortiOS version 7.4.0 or above Upgrade to FortiOS version 7.2.5 or above AND Set the `server-hostname` property to the device hostname, which will disable `Host redirection` for SSL VPN: config vpn ssl settings set server-hostname Server hostname for HTTPS. When set, will be used for SSL VPN web proxy host header for any redirection. Webfilter interface (port 8008) Upgrade to FortiOS version 7.4.0 or above Upgrade to FortiOS version 7.2.5 or above Upgrade to FortiOS version 7.0.12 or above Upgrade to FortiOS version 6.4.13 or above FortiProxy Administrative Interface Upgrade to FortiProxy version 7.0.5 and above AND Set the `admin-host` property to the device hostname, which will disable `Host redirection`: config system global set admin-host "Administrative host for HTTP and HTTPs. When set, will be used in lieu of the client's Host header for any redirection" SSLVPN interface Upgrade to FortiProxy version 7.4.0 or above AND Set the `server-hostname` property to the device hostname, which will disable `Host redirection` for SSL VPN: config vpn ssl settings set server-hostname