A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco Wireless LAN Controllers could allow an authenticated, remote attacker to cause an affected device to restart, resulting in a denial of service (DoS) condition
Published Nov 2, 2017
6.3
MEDIUMCVSS 3.0
EPSS 1.61%
Description
A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco Wireless LAN Controllers could allow an authenticated, remote attacker to cause an affected device to restart, resulting in a denial of service (DoS) condition. The vulnerability is due to a memory leak that occurs on an affected device after the device fails to deallocate a buffer that is used when certain MIBs are polled. An attacker who knows the SNMP Version 2 SNMP Read string or has valid SNMP Version 3 credentials for an affected device could repeatedly poll the affected MIB object IDs (OIDs) and consume available memory on the device. When memory is sufficiently depleted on the device, the device will restart, resulting in a DoS condition. Cisco Bug IDs: CSCvc71674.
Affected products
- Vendor n/a Product Cisco Wireless LAN Controller Defaultn/a
- Version Cisco Wireless LAN ControllerStatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Cisco Wireless LAN Controller | n/a |
|
- n/a
Running on/with
- n/a
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:N/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H
AV:A/AC:M/Au:S/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 4, 2026.
Score over time
2021-2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (18 key points)
Flat stretches are collapsed. Showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 4, 2026 | 1.61% (0.01607) | 75.06th | v5 (v2026.06.15) |
| Sep 22, 2026 | 1.61% (0.01607) | 74.83th | v5 (v2026.06.15) |
| Sep 21, 2026 | 0.59% (0.00594) | 46.79th | v5 (v2026.06.15) |
| Sep 6, 2026 | 1.61% (0.01607) | 74.28th | v5 (v2026.06.15) |
| Sep 5, 2026 | 0.59% (0.00594) | 45.96th | v5 (v2026.06.15) |
| Aug 30, 2026 | 1.61% (0.01607) | 74.16th | v5 (v2026.06.15) |
| Aug 28, 2026 | 0.59% (0.00594) | 45.70th | v5 (v2026.06.15) |
| Aug 24, 2026 | 1.61% (0.01607) | 74.02th | v5 (v2026.06.15) |
| Aug 23, 2026 | 0.59% (0.00594) | 45.68th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.61% (0.01607) | 72.67th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.64% (0.00641) | 68.82th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.14% (0.00143) | 51.61th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.14% (0.00143) | 49.39th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.17% (0.00173) | 52.61th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.06% (0.01061) | 52.82th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.06% (0.01061) | 28.23th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.30% (0.01300) | 31.12th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.30% (0.01300) | 0.00th | v1 |
References (3)
- http://www.securityfocus.com/bid/101642 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1039712 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-wlc1 x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/101642 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1039712 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171101-wlc1 | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.