Cisco DSL CPE devices running CBOS 2.4.4 and earlier allows remote attackers to cause a denial of service (hang or memory consumption) via (1) a large packet to the DHCP port, (2) a large packet to the Telnet port, or (3) a flood of large packets to the CPE, which causes the TCP/IP stack to consume large amounts of memory
Published Aug 31, 2002
5.0
MEDIUMCVSS 2.0
EPSS 5.37%
Description
Cisco DSL CPE devices running CBOS 2.4.4 and earlier allows remote attackers to cause a denial of service (hang or memory consumption) via (1) a large packet to the DHCP port, (2) a large packet to the Telnet port, or (3) a flood of large packets to the CPE, which causes the TCP/IP stack to consume large amounts of memory.
Affected products
No data.
- 2.0.1
- 2.1.0
- 2.1.0a
- 2.2.0
- 2.2.1
- 2.2.1a
- 2.3
- 2.3.2
- 2.3.5
- 2.3.5.015
- 2.3.7
- 2.3.7.002
- 2.3.8
- 2.3.9
- 2.3_.053
- 2.4.1
- 2.4.2
- 2.4.2ap
- 2.4.2b
- 2.4.3
- 2.4.4
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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 5.37% (0.05370) | 92.40th | v5 (v2026.06.15) |
| Jun 15, 2026 | 5.37% (0.05370) | 91.59th | v5 (v2026.06.15) |
| Oct 15, 2025 | 22.61% (0.22613) | 95.58th | v4 (v2025.03.14) |
| Mar 30, 2025 | 19.87% (0.19870) | 94.98th | v4 (v2025.03.14) |
| Mar 29, 2025 | 27.00% (0.26996) | 94.19th | v4 (v2025.03.14) |
| Mar 19, 2025 | 19.87% (0.19870) | 94.76th | v4 (v2025.03.14) |
| Mar 17, 2025 | 13.80% (0.13798) | 93.76th | v4 (v2025.03.14) |
| Dec 12, 2024 | 2.75% (0.02748) | 90.93th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.75% (0.02748) | 88.92th | v3 (v2023.03.01) |
| Mar 6, 2023 | 6.79% (0.06790) | 92.15th | v2 (v2022.01.01) |
| Apr 1, 2022 | 6.79% (0.06790) | 91.41th | v2 (v2022.01.01) |
| Feb 4, 2022 | 6.79% (0.06790) | 79.54th | v2 (v2022.01.01) |
No CWE recorded.
References (7)
- http://www.cisco.com/warp/public/707/CBOS-DoS.shtml vendor-advisoryx_refsource_CISCO
- http://www.iss.net/security_center/static/9151.php vdb-entryx_refsource_XFPatchVendor Advisory
- http://www.iss.net/security_center/static/9153.php vdb-entryx_refsource_XF
- http://www.securityfocus.com/bid/4813 vdb-entryx_refsource_BIDPatchVendor Advisory
- http://www.securityfocus.com/bid/4814 vdb-entryx_refsource_BID
- http://www.securityfocus.com/bid/4815 vdb-entryx_refsource_BID
- https://exchange.xforce.ibmcloud.com/vulnerabilities/9152 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://www.cisco.com/warp/public/707/CBOS-DoS.shtml | vendor-advisoryx_refsource_CISCO | |
| http://www.iss.net/security_center/static/9151.php | vdb-entryx_refsource_XFPatchVendor Advisory | |
| http://www.iss.net/security_center/static/9153.php | vdb-entryx_refsource_XF | |
| http://www.securityfocus.com/bid/4813 | vdb-entryx_refsource_BIDPatchVendor Advisory | |
| http://www.securityfocus.com/bid/4814 | vdb-entryx_refsource_BID | |
| http://www.securityfocus.com/bid/4815 | vdb-entryx_refsource_BID | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/9152 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.