CVE-2022-23439

MEDIUMNVD 4.74.7—Trending — 3 sources updated this week

4.7

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

CVSS v3: 4.7
EG Score: 4.7(medium)
EPSS: 43.1%
KEV: Not listed

Published

January 22, 2025

Last Modified

January 14, 2026

References (1)

psirt@fortinethttps://fortiguard.com/psirt/FG-IR-23-494

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-610Externally Controlled Reference to a Resource in Another Sphere

Data Freshness Timeline

(refreshed 13× in last 7d / 13× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-02 20:11 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-06-01 13:50 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 22:29 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-31 00:15 UTCepss_batch
2026-05-30 12:52 UTCEG score recompute
2026-05-30 12:52 UTCGHSA enrichment
2026-05-29 13:42 UTCepss_batch

Frequently asked(5)

What is CVE-2022-23439?

CVE-2022-23439 is a medium vulnerability published on January 22, 2025. 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

When was CVE-2022-23439 disclosed?

CVE-2022-23439 was first published in the National Vulnerability Database on January 22, 2025, with the most recent update on January 14, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2022-23439 actively exploited?

CVE-2022-23439 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 43.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2022-23439?

CVE-2022-23439 has a CVSS v3 base score of 4.7 (NVD).

How do I remediate CVE-2022-23439?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-23439, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2022-23439

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CVE-2022-23439

📅 Published

🔄 Last Modified

🔗 References (1)