DNSAPI.dll in the DNS client in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 does not properly process DNS queries, which allows remote attackers to execute arbitrary code via (1) a crafted LLMNR broadcast query or (2) a crafted application, aka "DNS Query Vulnerability."
Published Apr 13, 2011
9.8
CRITICALCVSS 3.1
EPSS 62.49%
Description
DNSAPI.dll in the DNS client in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 does not properly process DNS queries, which allows remote attackers to execute arbitrary code via (1) a crafted LLMNR broadcast query or (2) a crafted application, aka "DNS Query Vulnerability."
Affected products
No data.
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- r2
- r2
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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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
YesTechnical Impact
TotalDecision
n/aAssessed Oct 17, 2024 · SSVC 2.0.3
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 | 62.49% (0.62495) | 99.17th | v5 (v2026.06.15) |
| Jun 15, 2026 | 63.33% (0.63335) | 99.10th | v5 (v2026.06.15) |
| Dec 28, 2025 | 46.93% (0.46929) | 97.55th | v4 (v2025.03.14) |
| Dec 27, 2025 | 49.70% (0.49697) | 97.72th | v4 (v2025.03.14) |
| Oct 28, 2025 | 46.93% (0.46929) | 97.52th | v4 (v2025.03.14) |
| Oct 27, 2025 | 49.70% (0.49697) | 97.67th | v4 (v2025.03.14) |
| Oct 1, 2025 | 46.93% (0.46929) | 97.61th | v4 (v2025.03.14) |
| Mar 30, 2025 | 49.70% (0.49697) | 97.58th | v4 (v2025.03.14) |
| Mar 29, 2025 | 52.98% (0.52984) | 97.03th | v4 (v2025.03.14) |
| Mar 19, 2025 | 49.70% (0.49697) | 97.48th | v4 (v2025.03.14) |
| Mar 17, 2025 | 46.16% (0.46165) | 97.36th | v4 (v2025.03.14) |
| Mar 1, 2025 | 81.17% (0.81173) | 98.64th | v3 (v2023.03.01) |
| Jun 13, 2024 | 82.60% (0.82596) | 98.43th | v3 (v2023.03.01) |
| Jan 21, 2024 | 78.62% (0.78624) | 97.99th | v3 (v2023.03.01) |
| Dec 2, 2023 | 75.72% (0.75720) | 97.86th | v3 (v2023.03.01) |
| Aug 20, 2023 | 72.09% (0.72090) | 97.65th | v3 (v2023.03.01) |
| May 2, 2023 | 60.66% (0.60657) | 97.21th | v3 (v2023.03.01) |
| Mar 9, 2023 | 53.28% (0.53280) | 97.00th | v3 (v2023.03.01) |
| Mar 7, 2023 | 44.39% (0.44393) | 96.76th | v3 (v2023.03.01) |
| Mar 6, 2023 | 79.18% (0.79179) | 99.47th | v2 (v2022.01.01) |
| Jun 3, 2022 | 79.18% (0.79179) | 99.43th | v2 (v2022.01.01) |
| Mar 16, 2022 | 79.77% (0.79766) | 99.42th | v2 (v2022.01.01) |
| Feb 4, 2022 | 80.69% (0.80687) | 99.43th | v2 (v2022.01.01) |
References (8)
- http://osvdb.org/71780 vdb-entryx_refsource_OSVDB
- http://secunia.com/advisories/44161 third-party-advisoryx_refsource_SECUNIA
- http://www.securityfocus.com/bid/47242 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id?1025332 vdb-entryx_refsource_SECTRACK
- http://www.us-cert.gov/cas/techalerts/TA11-102A.html third-party-advisoryx_refsource_CERTUS Government Resource
- http://www.vupen.com/english/advisories/2011/0948 vdb-entryx_refsource_VUPEN
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-030 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11902 vdb-entrysignaturex_refsource_OVAL
| Link | Providers | Tags |
|---|---|---|
| http://osvdb.org/71780 | vdb-entryx_refsource_OSVDB | |
| http://secunia.com/advisories/44161 | third-party-advisoryx_refsource_SECUNIA | |
| http://www.securityfocus.com/bid/47242 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id?1025332 | vdb-entryx_refsource_SECTRACK | |
| http://www.us-cert.gov/cas/techalerts/TA11-102A.html | third-party-advisoryx_refsource_CERTUS Government Resource | |
| http://www.vupen.com/english/advisories/2011/0948 | vdb-entryx_refsource_VUPEN | |
| https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-030 | vendor-advisoryx_refsource_MS | |
| https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11902 | vdb-entrysignaturex_refsource_OVAL |
Change history (0)
No recorded changes yet.