Wireless Lan Controller SoftwareOperating system · Cisco
CVE-2015-6258
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 Internet Access Point Protocol (IAPP) module on Cisco Wireless LAN Controller (WLC) devices with software 8.1(104.37) allows remote attackers to trigger incorrect traffic forwarding via crafted IPv6 packets, aka Bug ID CSCuv40033.
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 vulnerability exists in the Internet Access Point Protocol (IAPP) module on Cisco Wireless LAN Controllers running software version 8.1(104.37). Remote attackers can send specially crafted IPv6 packets to trigger incorrect traffic forwarding behavior in the IAPP module, potentially causing traffic to be routed or forwarded to unintended destinations.
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
Wireless Lan Controller SoftwareOperating system
= 8.1.104.37CVSS 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
- Partial
- Integrity
- None
- Availability
- None
AV:N/AC:L/Au:N/C:P/I:N/A:N
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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Confirm Cisco Wireless LAN Controller modelIdentify the device as a Cisco WLC model (such as 5500, 8500, or 9800 series) by checking the device hardware label or using 'show inventory' command.Affected if Device is not a Cisco Wireless LAN Controller - this CVE only applies to WLC platforms.
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Check WLC software versionRun 'show version' or 'show boot' on the WLC CLI to retrieve the active software version.Affected if Software version is exactly 8.1(104.37) - this is the only version listed as affected in the CVE.
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Verify IPv6 is enabled on the WLCRun 'show ipv6 status' or check the WLC GUI under Controller > IPv6 to see if IPv6 is enabled.Affected if IPv6 is enabled - the vulnerability is triggered by specially crafted IPv6 packets sent to the IAPP module.
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Confirm IAPP module is activeRun 'show ap config general' or 'show ap join summary' to verify that Access Points are connected and the IAPP module is actively handling AP communications.Affected if IAPP module is active and handling CAPWAP traffic between the WLC and APs - this is the module with the flaw.
You are affected only if you have a Cisco WLC running exactly version 8.1(104.37) with IPv6 enabled and active AP connections using the IAPP module.
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 dataApply the relevant Cisco firmware update for Cisco WLC software version 8.1(104.37) that addresses CSCuv40033. If immediate patching is not feasible, consider network segmentation to limit exposure of WLC management interfaces to untrusted networks.
Fix this in Wireless Lan Controller Software
Scoped from the published advisory
- Consultation2.0 h
- Implementation4.0 h
- Testing6.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2015-6258 — 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-2015-6258 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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