A vulnerability in the Internet Group Management Protocol (IGMP) packet-processing functionality of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to exhaust buffers on an affected device, resulting in a denial of service (DoS) condition, aka a Memory Leak
Published Mar 28, 2018
7.4
HIGHCVSS 3.0
EPSS 0.71%
Description
A vulnerability in the Internet Group Management Protocol (IGMP) packet-processing functionality of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to exhaust buffers on an affected device, resulting in a denial of service (DoS) condition, aka a Memory Leak. The vulnerability is due to the affected software insufficiently processing IGMP Membership Query packets that are sent to an affected device. An attacker could exploit this vulnerability by sending a large number of IGMP Membership Query packets, which contain certain values, to an affected device. A successful exploit could allow the attacker to exhaust buffers on the affected device, resulting in a DoS condition that requires the device to be reloaded manually. This vulnerability affects: Cisco Catalyst 4500 Switches with Supervisor Engine 8-E, if they are running Cisco IOS XE Software Release 3.x.x.E and IP multicast routing is configured; Cisco devices that are running Cisco IOS XE Software Release 16.x, if IP multicast routing is configured. Cisco Bug IDs: CSCuw09295, CSCve94496.
Affected products
- Vendor n/a Product Cisco IOS XE Defaultn/a
- Version Cisco IOS XEStatusaffectedConstraints-
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Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
AV:A/AC:L/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Dec 2, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.71% (0.00708) | 51.75th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.71% (0.00708) | 52.02th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.10% (0.00102) | 42.23th | v3 (v2023.03.01) |
| Sep 28, 2023 | 0.10% (0.00102) | 41.17th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.11% (0.00112) | 43.84th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.12% (0.00118) | 44.02th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.04% (0.01036) | 27.56th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.04% (0.01036) | 0.00th | v1 |
References (3)
- http://www.securityfocus.com/bid/103568 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040592 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-igmp x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/103568 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1040592 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-igmp | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.