How severe is CVE-2022-23439?

CVE-2022-23439 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2022-23439 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-23439?

CVE-2022-23439 primarily affects Fortinet Fortiadc. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2022-23439?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2022-23439 have an EU (EUVD) identifier?

Yes. CVE-2022-23439 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-28514.

When was CVE-2022-23439 published?

CVE-2022-23439 was published on 2025-01-22 and last updated on 2026-06-17.

CVE-2022-23439

CVE-2022-23439 is a medium-severity vulnerability in Fortinet Fortiadc with a CVSS 3.x base score of 4.7. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-610.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2022-28514
Weakness: CWE-610
Affected product: Fortinet Fortiadc
Published: 2025-01-22
Last modified: 2026-06-17

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 arbitrary webserver

Frequently asked questions

What is 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 arbitrary webserver
How severe is CVE-2022-23439?: CVE-2022-23439 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with high attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2022-23439 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-23439?: CVE-2022-23439 primarily affects Fortinet Fortiadc. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2022-23439?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2022-23439 have an EU (EUVD) identifier?: Yes. CVE-2022-23439 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2022-28514.
When was CVE-2022-23439 published?: CVE-2022-23439 was published on 2025-01-22 and last updated on 2026-06-17.

References

https://fortiguard.com/psirt/FG-IR-23-494

Affected products (15)

cpe:2.3:a:fortinet:fortiadc:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiauthenticator:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiddos:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiddos-f:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortindr:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortindr:7.2.0:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortirecorder:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortisoar:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortitester:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortivoice:*:*:*:*:*:*:*:*
cpe:2.3:a:fortinet:fortiwlc:*:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortiswitch:*:*:*:*:*:*:*:*

More vulnerabilities in Fortinet Fortiadc

CVE-2023-37933 — High (CVSS 8.8): An improper neutralization of input during web page generation ('Cross-site Scripting') vulnerability [CWE-79] in…
CVE-2022-39947 — High (CVSS 8.8): A improper neutralization of special elements used in an os command ('os command injection') in Fortinet FortiADC…
CVE-2022-38374 — High (CVSS 8.8): A improper neutralization of input during web page generation ('cross-site scripting') in Fortinet FortiADC 7.0.0 -…
CVE-2023-26205 — High (CVSS 8.1): An improper access control vulnerability [CWE-284] in FortiADC automation feature 7.1.0 through 7.1.2, 7.0 all…
CVE-2022-35851 — High (CVSS 8.0): An improper neutralization of input during web page generation vulnerability [CWE-79] in FortiADC management interface…
CVE-2023-25607 — High (CVSS 7.8): An improper neutralization of special elements used in an OS Command ('OS Command Injection') vulnerability [CWE-78 ]…

All CVEs affecting Fortinet Fortiadc →

Other CWE-610 vulnerabilities

CVE-2022-27593 — Critical (CVSS 10.0): An externally controlled reference to a resource vulnerability has been reported to affect QNAP NAS running Photo…
CVE-2019-7290 — Critical (CVSS 10.0): An access issue was addressed with additional sandbox restrictions. This issue is fixed in Shortcuts 2.1.3 for iOS. A…
CVE-2017-16088 — Critical (CVSS 10.0): The safe-eval module describes itself as a safer version of eval. By accessing the object constructors, un-sanitized…
CVE-2022-39206 — Critical (CVSS 9.9): Onedev is an open source, self-hosted Git Server with CI/CD and Kanban. When using Docker-based job executors, the…
CVE-2026-47643 — Critical (CVSS 9.8): External control of file name or path in Azure Stack Edge allows an unauthorized attacker to execute code over a…
CVE-2022-20239 — Critical (CVSS 9.8): remap_pfn_range' here may map out of size kernel memory (for example, may map the kernel area), and because the…

Browse all CWE-610 vulnerabilities →