FortiosOperating system · Fortinet
CVE-2015-1452
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedThe Control and Provisioning of Wireless Access Points (CAPWAP) daemon in Fortinet FortiOS 5.0 Patch 7 build 4457 allows remote attackers to cause a denial of service (locked CAPWAP Access Controller) via a large number of ClientHello DTLS messages.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceThe CAPWAP (Control and Provisioning of Wireless Access Points) daemon in Fortinet FortiOS 5.0 Patch 7 build 4457 is vulnerable to a denial of service attack. Remote attackers can trigger a condition causing the CAPWAP Access Controller to lock up by sending a large volume of ClientHello DTLS messages, likely exploiting lack of proper rate limiting or resource management for incoming DTLS handshake requests.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data
FortiosOperating system
= 5.0.7CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Authentication
- None
- Confidentiality
- None
- Integrity
- None
- Availability
- Complete
AV:N/AC:L/Au:N/C:N/I:N/A:C
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check FortiOS versionRun 'get system status' or 'fortios -v' via CLI to retrieve the installed FortiOS version and build numberAffected if Version equals 5.0 Patch 7 with build 4457
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Verify CAPWAP daemon is enabledRun 'get system status' and look for CAPWAP Access Controller information, or check 'diag sys capwapd status' to confirm the daemon is runningAffected if CAPWAP Access Controller is enabled and running
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Confirm DTLS is configured for CAPWAPRun 'show wireless-controller vap' or 'show wireless-controller global' and look for DTLS-enabled CAPWAP settings; DTLS is typically enabled by default on CAPWAP controllersAffected if DTLS is enabled for CAPWAP communications
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Check CAPWAP listener exposureReview interface bindings for CAPWAP service: run 'diag ip address list' and check for UDP port 5246 (CAPWAP) and port 5247 (CAPWAP-DTLS) listeners on external or untrusted interfacesAffected if CAPWAP DTLS service (port 5247) is bound to an interface accessible from untrusted networks
You are affected if FortiOS is version 5.0 Patch 7 build 4457 AND the CAPWAP Access Controller with DTLS is enabled and exposed to network attack surface.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpgrade FortiOS to a version beyond 5.0 Patch 7 that contains the fix; alternatively, implement network-level rate limiting or ACLs to restrict unauthenticated DTLS traffic to the CAPWAP service port.
Fix this in Fortios
Scoped from the published advisory
- Consultation3.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,408.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2015-1452 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2015-1452 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
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