Microsoft Internet Security and Acceleration (ISA) Server 2006 Gold and SP1, when Radius OTP is enabled, uses the HTTP-Basic authentication method, which allows remote attackers to gain the privileges of an arbitrary account, and access published web pages, via vectors involving attempted access to a network resource behind the ISA Server, aka "Radius OTP Bypass Vulnerability."
Published Jul 15, 2009
9.0
HIGHCVSS 2.0
EPSS 26.45%
Description
Microsoft Internet Security and Acceleration (ISA) Server 2006 Gold and SP1, when Radius OTP is enabled, uses the HTTP-Basic authentication method, which allows remote attackers to gain the privileges of an arbitrary account, and access published web pages, via vectors involving attempted access to a network resource behind the ISA Server, aka "Radius OTP Bypass Vulnerability."
Affected products
No data.
- 2006
- 2006
- 2006
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:S/C:C/I:C/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
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 26.45% (0.26454) | 97.95th | v5 (v2026.06.15) |
| Jun 15, 2026 | 26.45% (0.26454) | 97.74th | v5 (v2026.06.15) |
| May 30, 2025 | 39.38% (0.39378) | 97.10th | v4 (v2025.03.14) |
| Mar 17, 2025 | 41.10% (0.41103) | 97.07th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.74% (0.01735) | 88.40th | v3 (v2023.03.01) |
| Sep 2, 2023 | 1.74% (0.01735) | 86.34th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.96% (0.01961) | 86.89th | v3 (v2023.03.01) |
| Mar 6, 2023 | 13.85% (0.13852) | 95.81th | v2 (v2022.01.01) |
| Jul 18, 2022 | 13.85% (0.13852) | 95.57th | v2 (v2022.01.01) |
| Jul 17, 2022 | 1.23% (0.01232) | 65.90th | v2 (v2022.01.01) |
| Jun 9, 2022 | 13.85% (0.13852) | 95.51th | v2 (v2022.01.01) |
| Apr 5, 2022 | 16.18% (0.16184) | 95.76th | v2 (v2022.01.01) |
| Apr 1, 2022 | 20.15% (0.20151) | 96.12th | v2 (v2022.01.01) |
| Feb 4, 2022 | 20.15% (0.20151) | 94.01th | v2 (v2022.01.01) |
References (6)
- http://secunia.com/advisories/35784 third-party-advisoryx_refsource_SECUNIA
- http://www.securitytracker.com/id?1022547 vdb-entryx_refsource_SECTRACK
- http://www.us-cert.gov/cas/techalerts/TA09-195A.html third-party-advisoryx_refsource_CERTUS Government Resource
- http://www.vupen.com/english/advisories/2009/1889 vdb-entryx_refsource_VUPEN
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-031 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5649 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/35784 | third-party-advisoryx_refsource_SECUNIA | |
| http://www.securitytracker.com/id?1022547 | vdb-entryx_refsource_SECTRACK | |
| http://www.us-cert.gov/cas/techalerts/TA09-195A.html | third-party-advisoryx_refsource_CERTUS Government Resource | |
| http://www.vupen.com/english/advisories/2009/1889 | vdb-entryx_refsource_VUPEN | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-031 | vendor-advisoryx_refsource_MS | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5649 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.