Cisco IOS and IOS XE Software Cisco Discovery Protocol Denial of Service Vulnerability
Published Oct 5, 2018
7.4
HIGHCVSS 3.0
EPSS 0.66%
Description
A vulnerability in the implementation of Cisco Discovery Protocol functionality in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to exhaust memory on an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to improper memory handling by the affected software when the software processes high rates of Cisco Discovery Protocol packets that are sent to a device. An attacker could exploit this vulnerability by sending a high rate of Cisco Discovery Protocol packets to an affected device. A successful exploit could allow the attacker to exhaust memory on the affected device, resulting in a DoS condition.
Affected products
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||
|---|---|---|---|---|---|---|
| Cisco | Cisco IOS Software | 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: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 Nov 25, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 0.66% (0.00661) | 49.89th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.66% (0.00661) | 50.19th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.10% (0.00102) | 42.23th | v3 (v2023.03.01) |
| Mar 28, 2024 | 0.10% (0.00102) | 40.73th | v3 (v2023.03.01) |
| Feb 17, 2024 | 0.11% (0.00112) | 43.33th | v3 (v2023.03.01) |
| Sep 29, 2023 | 0.14% (0.00139) | 49.09th | 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/105413 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://ics-cert.us-cert.gov/advisories/ICSA-19-094-03 x_refsource_MISC
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-cdp-dos vendor-advisoryx_refsource_CISCOVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/105413 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://ics-cert.us-cert.gov/advisories/ICSA-19-094-03 | x_refsource_MISC | |
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-cdp-dos | vendor-advisoryx_refsource_CISCOVendor Advisory |
Change history (0)
No recorded changes yet.