Microsoft Windows NT 4.0, Windows 2000, Windows XP, and Windows Small Business Server 2003 allow remote attackers to cause a denial of service (IP stack hang) via a continuous stream of packets on TCP port 135 that have incorrect TCP header checksums and random numbers in certain TCP header fields, as demonstrated by the Achilles Windows Attack Tool
Published Jul 27, 2006
5.0
MEDIUMCVSS 2.0
EPSS 24.74%
Description
Microsoft Windows NT 4.0, Windows 2000, Windows XP, and Windows Small Business Server 2003 allow remote attackers to cause a denial of service (IP stack hang) via a continuous stream of packets on TCP port 135 that have incorrect TCP header checksums and random numbers in certain TCP header fields, as demonstrated by the Achilles Windows Attack Tool. NOTE: the researcher reports that the Microsoft Security Response Center has stated "Our investigation which has included code review, review of the TCPDump, and attempts on reproing the issue on multiple fresh installs of various Windows Operating Systems have all resulted in non confirmation.
Affected products
No data.
- n/a
- n/a
- n/a
- n/a
- n/a
- datacenter_edition
- datacenter_edition
- datacenter_edition_64-bit
- datacenter_edition_64-bit
- enterprise_64-bit
- enterprise_edition
- enterprise_edition_64-bit
- r2
- sp1
- standard
- standard
- standard_64-bit
- web
- web
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- 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 (28 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 24.74% (0.24741) | 97.84th | v5 (v2026.06.15) |
| Jul 20, 2026 | 24.74% (0.24741) | 97.66th | v5 (v2026.06.15) |
| Jun 24, 2026 | 28.20% (0.28197) | 97.86th | v5 (v2026.06.15) |
| Jun 20, 2026 | 26.05% (0.26055) | 97.72th | v5 (v2026.06.15) |
| Jun 15, 2026 | 24.16% (0.24156) | 97.56th | v5 (v2026.06.15) |
| Apr 24, 2026 | 17.73% (0.17729) | 95.13th | v4 (v2025.03.14) |
| Dec 28, 2025 | 15.63% (0.15628) | 94.47th | v4 (v2025.03.14) |
| Dec 27, 2025 | 12.96% (0.12965) | 93.88th | v4 (v2025.03.14) |
| Oct 28, 2025 | 15.63% (0.15628) | 94.39th | v4 (v2025.03.14) |
| Oct 27, 2025 | 13.43% (0.13425) | 93.93th | v4 (v2025.03.14) |
| Oct 23, 2025 | 15.63% (0.15628) | 94.38th | v4 (v2025.03.14) |
| Oct 1, 2025 | 19.95% (0.19945) | 95.30th | v4 (v2025.03.14) |
| Sep 15, 2025 | 13.43% (0.13425) | 93.95th | v4 (v2025.03.14) |
| Mar 30, 2025 | 11.98% (0.11981) | 93.14th | v4 (v2025.03.14) |
| Mar 29, 2025 | 29.69% (0.29686) | 94.68th | v4 (v2025.03.14) |
| Mar 17, 2025 | 11.55% (0.11546) | 93.08th | v4 (v2025.03.14) |
| Dec 12, 2024 | 8.39% (0.08392) | 94.68th | v3 (v2023.03.01) |
| Nov 15, 2024 | 8.39% (0.08392) | 94.62th | v3 (v2023.03.01) |
| Dec 19, 2023 | 14.12% (0.14115) | 95.17th | v3 (v2023.03.01) |
| Sep 21, 2023 | 11.74% (0.11744) | 94.63th | v3 (v2023.03.01) |
| Jul 7, 2023 | 9.84% (0.09839) | 94.02th | v3 (v2023.03.01) |
| May 30, 2023 | 10.87% (0.10867) | 94.23th | v3 (v2023.03.01) |
| Apr 22, 2023 | 9.03% (0.09028) | 93.66th | v3 (v2023.03.01) |
| Mar 15, 2023 | 8.03% (0.08031) | 93.24th | v3 (v2023.03.01) |
| Mar 7, 2023 | 8.20% (0.08197) | 93.29th | v3 (v2023.03.01) |
| Mar 6, 2023 | 21.00% (0.20999) | 96.55th | v2 (v2022.01.01) |
| Apr 1, 2022 | 21.00% (0.20999) | 96.23th | v2 (v2022.01.01) |
| Feb 4, 2022 | 21.00% (0.20999) | 94.12th | v2 (v2022.01.01) |
No CWE recorded.
References (3)
- http://securityreason.com/securityalert/1282 third-party-advisoryx_refsource_SREASON
- http://www.securityfocus.com/archive/1/441007/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/19135 vdb-entryx_refsource_BIDExploit
| Link | Providers | Tags |
|---|---|---|
| http://securityreason.com/securityalert/1282 | third-party-advisoryx_refsource_SREASON | |
| http://www.securityfocus.com/archive/1/441007/100/0/threaded | mailing-listx_refsource_BUGTRAQ | |
| http://www.securityfocus.com/bid/19135 | vdb-entryx_refsource_BIDExploit |
Change history (0)
No recorded changes yet.