Firewall geolocation bypass during GeoIP updates
Published Dec 13, 2023 · Updated May 22, 2025
Improper access control in FortiOS and FortiProxy allows remote attackers to bypass firewall geolocation deny policies during GeoIP updates. The policy enforcement path permits traffic that should be denied when a request coincides with replacement of the GeoIP database. The target must use a geography-based deny policy, and Fortinet's assessment requires an update race and user interaction; the reported consequence is unauthorized traffic passage only.
Summary
What happened
Improper access control in FortiOS and FortiProxy allows remote attackers to bypass firewall geolocation deny policies during GeoIP updates. The policy enforcement path permits traffic that should be denied when a request coincides with replacement of the GeoIP database. The target must use a geography-based deny policy, and Fortinet's assessment requires an update race and user interaction; the reported consequence is unauthorized traffic passage only.
The record
- CVE
- CVE-2023-47536
- Published
- Dec 13, 2023
- Updated
- May 22, 2025
- Vendor
- Fortinet
- Product
- FortiOS
- Classifications
- CWE-284, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 13, 2023CVE publishedPublication date reported by the CVE source.
- May 22, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=6.4.0 <=6.4.14
- Affected versionversion=7.0.0 <=7.0.13
- Affected versionversion=7.2.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Public exploit references
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Technologies
Your stack
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Your stack
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