A vulnerability in the IPv6 Simple Network Management Protocol (SNMP) code of Cisco IOS and Cisco IOS XE Software could allow an authenticated, remote attacker to cause high CPU usage or a reload of the device
Published Sep 7, 2017
5.3
MEDIUMCVSS 3.0
EPSS 1.65%
Description
A vulnerability in the IPv6 Simple Network Management Protocol (SNMP) code of Cisco IOS and Cisco IOS XE Software could allow an authenticated, remote attacker to cause high CPU usage or a reload of the device. The vulnerability is due to IPv6 sub block corruption. An attacker could exploit this vulnerability by polling the affected device IPv6 information. An exploit could allow the attacker to trigger high CPU usage or a reload of the device. Known Affected Releases: Denali-16.3.1. Cisco Bug IDs: CSCvb14640.
Affected products
- Vendor n/a Product Cisco IOS and Cisco IOS XE Defaultn/a
- Version Cisco IOS and Cisco IOS XEStatusaffectedConstraints-
- 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 IOS and Cisco IOS XE | 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:U/C:N/I:N/A:H
AV:N/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 1, 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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.65% (0.01647) | 75.60th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.65% (0.01647) | 73.32th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.91% (0.00905) | 74.13th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.27% (0.00269) | 68.68th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.27% (0.00269) | 66.86th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.27% (0.00269) | 62.62th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.13% (0.01132) | 56.11th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.13% (0.01132) | 30.65th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.31% (0.01306) | 31.19th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.31% (0.01306) | 0.00th | v1 |
References (4)
- http://www.securityfocus.com/bid/100648 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1039290 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://quickview.cloudapps.cisco.com/quickview/bug/CSCvb14640 x_refsource_CONFIRMVendor Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-snmp x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/100648 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1039290 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://quickview.cloudapps.cisco.com/quickview/bug/CSCvb14640 | x_refsource_CONFIRMVendor Advisory | |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170906-snmp | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.