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

Published: 2025-01-22 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2022-23439 is rated Low Risk (30.8/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.43%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-23439

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.30% 0.43% +0.13%
2 2026-06-13 0.21% 0.30% +0.09%
3 2026-03-08 — 0.21% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-23439

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.7 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 1.6 2.7 [email protected]
6.1 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 2.7 [email protected]

Weakness enumeration for CVE-2022-23439

Affected software / configurations for CVE-2022-23439

Vendor Product Version Raw CPE
fortinet fortiadc >= 5.4.0, < 6.2.4 cpe:2.3:a:fortinet:fortiadc:*:*:*:*:*:*:*:*
fortinet fortiauthenticator >= 6.3.0, < 6.3.4 cpe:2.3:a:fortinet:fortiauthenticator:*:*:*:*:*:*:*:*
fortinet fortiauthenticator >= 6.4.0, < 6.4.2 cpe:2.3:a:fortinet:fortiauthenticator:*:*:*:*:*:*:*:*
fortinet fortiddos >= 5.3.0, < 5.5.2 cpe:2.3:a:fortinet:fortiddos:*:*:*:*:*:*:*:*
fortinet fortiddos-f >= 6.1.0, < 6.3.4 cpe:2.3:a:fortinet:fortiddos-f:*:*:*:*:*:*:*:*
fortinet fortimail >= 6.4.0, < 7.0.4 cpe:2.3:a:fortinet:fortimail:*:*:*:*:*:*:*:*
fortinet fortindr >= 1.4.0, < 7.1.1 cpe:2.3:a:fortinet:fortindr:*:*:*:*:*:*:*:*
fortinet fortindr 7.2.0 cpe:2.3:a:fortinet:fortindr:7.2.0:*:*:*:*:*:*:*
fortinet fortiproxy >= 2.0.0, < 7.0.5 cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*
fortinet fortiproxy >= 7.2.0, < 7.4.0 cpe:2.3:a:fortinet:fortiproxy:*:*:*:*:*:*:*:*
fortinet fortirecorder >= 6.0.0, < 6.0.11 cpe:2.3:a:fortinet:fortirecorder:*:*:*:*:*:*:*:*
fortinet fortirecorder >= 6.4.0, < 6.4.3 cpe:2.3:a:fortinet:fortirecorder:*:*:*:*:*:*:*:*
fortinet fortisoar >= 6.4.0, < 7.3.0 cpe:2.3:a:fortinet:fortisoar:*:*:*:*:*:*:*:*
fortinet fortitester >= 3.7.0, < 7.2.2 cpe:2.3:a:fortinet:fortitester:*:*:*:*:*:*:*:*
fortinet fortivoice >= 6.0.0, < 6.4.9 cpe:2.3:a:fortinet:fortivoice:*:*:*:*:*:*:*:*
fortinet fortiwlc >= 8.6.0, < 8.6.7 cpe:2.3:a:fortinet:fortiwlc:*:*:*:*:*:*:*:*
fortinet fortios >= 6.0.0, < 7.0.6 cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
fortinet fortios >= 7.2.0, < 7.2.5 cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*
fortinet fortiswitch >= 6.4.0, < 7.0.5 cpe:2.3:o:fortinet:fortiswitch:*:*:*:*:*:*:*:*

References for CVE-2022-23439

cvelogic Threat Intelligence