Cisco IOS 2.2(18)EW, 12.2(18)EWA, 12.2(14)SZ, 12.2(18)S, 12.2(18)SE, 12.2(18)SV, 12.2(18)SW, and other versions without the "no service dhcp" command, keep undeliverable DHCP packets in the queue instead of dropping them, which allows remote attackers to cause a denial of service (dropped traffic) via multiple undeliverable DHCP packets that exceed the input queue size
Published Dec 1, 2004
5.0
MEDIUMCVSS 2.0
EPSS 2.34%
Description
Cisco IOS 2.2(18)EW, 12.2(18)EWA, 12.2(14)SZ, 12.2(18)S, 12.2(18)SE, 12.2(18)SV, 12.2(18)SW, and other versions without the "no service dhcp" command, keep undeliverable DHCP packets in the queue instead of dropping them, which allows remote attackers to cause a denial of service (dropped traffic) via multiple undeliverable DHCP packets that exceed the input queue size.
Affected products
No data.
Configuration 1
- n/a
- n/a
- n/a
- n/a
Configuration 2
- n/a
- n/a
- n/a
- n/a
- 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.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:P
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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.34% (0.02342) | 83.01th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.34% (0.02342) | 81.36th | v5 (v2026.06.15) |
| Jan 24, 2026 | 3.94% (0.03941) | 88.03th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.79% (0.02789) | 85.13th | v4 (v2025.03.14) |
| Dec 17, 2024 | 3.71% (0.03712) | 91.65th | v3 (v2023.03.01) |
| Nov 8, 2023 | 1.90% (0.01900) | 87.17th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.05% (0.02050) | 87.19th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
No CWE recorded.
References (6)
- http://www.ciac.org/ciac/bulletins/p-034.shtml third-party-advisorygovernment-resourcex_refsource_CIAC
- http://www.cisco.com/warp/public/707/cisco-sa-20041110-dhcp.shtml vendor-advisoryx_refsource_CISCO
- http://www.kb.cert.org/vuls/id/630104 third-party-advisoryx_refsource_CERT-VNThird Party AdvisoryUS Government Resource
- http://www.us-cert.gov/cas/techalerts/TA04-316A.html third-party-advisoryx_refsource_CERTUS Government Resource
- https://exchange.xforce.ibmcloud.com/vulnerabilities/18021 vdb-entryx_refsource_XF
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5632 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://www.ciac.org/ciac/bulletins/p-034.shtml | third-party-advisorygovernment-resourcex_refsource_CIAC | |
| http://www.cisco.com/warp/public/707/cisco-sa-20041110-dhcp.shtml | vendor-advisoryx_refsource_CISCO | |
| http://www.kb.cert.org/vuls/id/630104 | third-party-advisoryx_refsource_CERT-VNThird Party AdvisoryUS Government Resource | |
| http://www.us-cert.gov/cas/techalerts/TA04-316A.html | third-party-advisoryx_refsource_CERTUS Government Resource | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/18021 | vdb-entryx_refsource_XF | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5632 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.