Microsoft Windows Media Player 6.4, Windows Media Format Runtime 7.1 through 11, and Windows Media Services 4.1, 9, and 2008 do not properly use the Service Principal Name (SPN) identifier when validating replies to authentication requests, which allows remote servers to execute arbitrary code via vectors that employ NTLM credential reflection, aka "SPN Vulnerability."
Published Dec 10, 2008
10.0
HIGHCVSS 2.0
EPSS 15.83%
Description
Microsoft Windows Media Player 6.4, Windows Media Format Runtime 7.1 through 11, and Windows Media Services 4.1, 9, and 2008 do not properly use the Service Principal Name (SPN) identifier when validating replies to authentication requests, which allows remote servers to execute arbitrary code via vectors that employ NTLM credential reflection, aka "SPN Vulnerability."
Affected products
No data.
Configuration 1
- 6.4
Running on/with
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
Configuration 2
- 7.1
Running on/with
- n/a
Configuration 3
- 4.1
Running on/with
- n/a
Configuration 4
- 9
Running on/with
- n/a
- n/a
- n/a
- n/a
Configuration 5
- 2008
Running on/with
- n/a
- n/a
Configuration 6
- 11
Running on/with
- n/a
- n/a
- n/a
- n/a
- gold
- n/a
- n/a
- n/a
- n/a
Configuration 7
- 11
Running on/with
- n/a
- n/a
- n/a
- n/a
Configuration 8
- 9.5
Running on/with
- n/a
- n/a
- n/a
- n/a
Configuration 9
- 9.5
Running on/with
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
- n/a
Configuration 10
- 9
Running on/with
- 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: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 (23 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 15.83% (0.15830) | 96.78th | v5 (v2026.06.15) |
| Jun 15, 2026 | 15.83% (0.15830) | 96.45th | v5 (v2026.06.15) |
| Dec 28, 2025 | 52.28% (0.52277) | 97.80th | v4 (v2025.03.14) |
| Dec 27, 2025 | 41.88% (0.41884) | 97.31th | v4 (v2025.03.14) |
| Oct 28, 2025 | 52.28% (0.52277) | 97.77th | v4 (v2025.03.14) |
| Oct 27, 2025 | 41.88% (0.41884) | 97.27th | v4 (v2025.03.14) |
| Oct 1, 2025 | 52.28% (0.52277) | 97.85th | v4 (v2025.03.14) |
| Mar 30, 2025 | 41.88% (0.41884) | 97.15th | v4 (v2025.03.14) |
| Mar 29, 2025 | 59.75% (0.59745) | 97.50th | v4 (v2025.03.14) |
| Mar 17, 2025 | 41.88% (0.41884) | 97.12th | v4 (v2025.03.14) |
| Jan 22, 2025 | 38.75% (0.38752) | 97.30th | v3 (v2023.03.01) |
| Dec 17, 2024 | 48.80% (0.48800) | 97.58th | v3 (v2023.03.01) |
| Dec 16, 2024 | 17.49% (0.17492) | 96.32th | v3 (v2023.03.01) |
| Nov 10, 2024 | 11.97% (0.11968) | 95.52th | v3 (v2023.03.01) |
| Jun 20, 2024 | 10.63% (0.10633) | 95.08th | v3 (v2023.03.01) |
| Nov 17, 2023 | 14.30% (0.14304) | 95.17th | v3 (v2023.03.01) |
| Jun 10, 2023 | 12.04% (0.12042) | 94.52th | v3 (v2023.03.01) |
| Apr 29, 2023 | 9.41% (0.09413) | 93.77th | v3 (v2023.03.01) |
| Mar 7, 2023 | 11.19% (0.11190) | 94.22th | v3 (v2023.03.01) |
| Mar 6, 2023 | 24.63% (0.24625) | 96.84th | v2 (v2022.01.01) |
| May 13, 2022 | 24.63% (0.24625) | 96.64th | v2 (v2022.01.01) |
| Mar 12, 2022 | 26.95% (0.26953) | 95.84th | v2 (v2022.01.01) |
| Feb 4, 2022 | 31.37% (0.31373) | 96.47th | v2 (v2022.01.01) |
References (8)
- http://secunia.com/advisories/33058 third-party-advisoryx_refsource_SECUNIA
- http://www.securityfocus.com/bid/32653 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1021372 vdb-entryx_refsource_SECTRACK
- http://www.securitytracker.com/id?1021373 vdb-entryx_refsource_SECTRACK
- http://www.us-cert.gov/cas/techalerts/TA08-344A.html third-party-advisoryx_refsource_CERTUS Government Resource
- http://www.vupen.com/english/advisories/2008/3388 vdb-entryx_refsource_VUPEN
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2008/ms08-076 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5942 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://secunia.com/advisories/33058 | third-party-advisoryx_refsource_SECUNIA | |
| http://www.securityfocus.com/bid/32653 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id?1021372 | vdb-entryx_refsource_SECTRACK | |
| http://www.securitytracker.com/id?1021373 | vdb-entryx_refsource_SECTRACK | |
| http://www.us-cert.gov/cas/techalerts/TA08-344A.html | third-party-advisoryx_refsource_CERTUS Government Resource | |
| http://www.vupen.com/english/advisories/2008/3388 | vdb-entryx_refsource_VUPEN | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2008/ms08-076 | vendor-advisoryx_refsource_MS | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5942 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.