The IGMP implementation on Cisco Wireless LAN Controller (WLC) devices 4.x, 5.x, 6.x, 7.0 before 7.0.250.0, 7.1, 7.2, and 7.3, when IGMPv3 S
The IGMP implementation on Cisco Wireless LAN Controller (WLC) devices 4.x, 5.x, 6.x, 7.0 before 7.0.250.0, 7.1, 7.2, and 7.3, when IGMPv3 Snooping is enabled, allows remote attackers to cause a denial of service (memory over-read and device restart) via a crafted field in an IGMPv3 message, aka Bug ID CSCuh33240.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for the hundreds of thousands of vulnerabilities in the database; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for help- Published
- Mar 6, 2014
- Updated
- Jun 16, 2026
- EPSS
- 1.2% · 66th percentile
- CWE
- CWE-399
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Report tools
Action score
28
Monitor
Low priority for now.
- CVSS
- 28 / 40 · 7.1 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 1.2%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| cisco | wireless lan controller software | cpe:2.3:o:cisco:wireless_lan_controller_software |
| cisco | wireless lan controller | cpe:2.3:h:cisco:wireless_lan_controller |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- cisco wireless lan controllerall versions
- cisco wireless lan controller software4.0
- cisco wireless lan controller software4.0.108
- cisco wireless lan controller software4.0.155.0
- cisco wireless lan controller software4.0.155.5
- cisco wireless lan controller software4.0.179.11
- cisco wireless lan controller software4.0.179.8
- cisco wireless lan controller software4.0.196
- cisco wireless lan controller software4.0.206.0
- cisco wireless lan controller software4.0.217.0
- cisco wireless lan controller software4.0.219.0
- cisco wireless lan controller software4.1
- cisco wireless lan controller software4.1.171.0
- cisco wireless lan controller software4.1.181.0
- cisco wireless lan controller software4.1.185.0
- cisco wireless lan controller software4.1m
- cisco wireless lan controller software4.2
- cisco wireless lan controller software4.2.112.0
- cisco wireless lan controller software4.2.117.0
- cisco wireless lan controller software4.2.130.0
Same product
cisco: all recordsOther highest-scoring records for the same primary product.
- CVE-2016-1363Buffer overflow in the redirection functionality in Cisco Wireless LAN Controller (WLC) Software 7.2 through 7.4 before 7.4.140.0(MD) and 7.41Plan
- CVE-2014-0703Cisco Wireless LAN Controller (WLC) devices 7.4 before 7.4.110.0 distribute Aironet IOS software with a race condition in the status of the 41Plan
- CVE-2007-2036The SNMP implementation in the Cisco Wireless LAN Controller (WLC) before 20070419 uses the default read-only community public, and the defa41Plan
- CVE-2019-15276Cisco Wireless LAN Controller HTTP Parsing Engine Denial of Service Vulnerability40Plan
- CVE-2015-6314Cisco Wireless LAN Controller (WLC) devices with software 7.6.x, 8.0 before 8.0.121.0, and 8.1 before 8.1.131.0 allow remote attackers to ch40Plan
- CVE-2012-0371Cisco Wireless LAN Controller (WLC) devices with software 4.x, 5.x, 6.0, and 7.0 before 7.0.220.4, when CPU-based ACLs are enabled, allow re38Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
If successful
- Confidentiality
- none
- Integrity
- none
- Availability
- C · the service can be disrupted
- Attack complexity
- M
- Confidentiality impact
- None
- Integrity impact
- None
- Availability impact
- C
Weakness class (CWE)
CWE-399 · Resource Management ErrorsCVSS vector
AV:N/AC:M/Au:N/C:N/I:N/A:C
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.