rpcrt4.dll (aka the RPC runtime library) in Microsoft Windows XP SP2, XP Professional x64 Edition, Server 2003 SP1 and SP2, Server 2003 x64 Edition and x64 Edition SP2, and Vista and Vista x64 Edition allows remote attackers to cause a denial of service (RPCSS service stop and system restart) via an RPC request that uses NTLMSSP PACKET authentication with a zero-valued verification trailer signature, which triggers an invalid dereference
Published Oct 9, 2007
7.8
HIGHCVSS 2.0
EPSS 43.30%
Description
rpcrt4.dll (aka the RPC runtime library) in Microsoft Windows XP SP2, XP Professional x64 Edition, Server 2003 SP1 and SP2, Server 2003 x64 Edition and x64 Edition SP2, and Vista and Vista x64 Edition allows remote attackers to cause a denial of service (RPCSS service stop and system restart) via an RPC request that uses NTLMSSP PACKET authentication with a zero-valued verification trailer signature, which triggers an invalid dereference. NOTE: this also affects Windows 2000 SP4, although the impact is an information leak.
Affected products
No data.
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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.
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: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 (27 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 43.30% (0.43303) | 98.69th | v5 (v2026.06.15) |
| Jun 15, 2026 | 43.30% (0.43303) | 98.56th | v5 (v2026.06.15) |
| Apr 5, 2026 | 76.75% (0.76748) | 98.95th | v4 (v2025.03.14) |
| Dec 28, 2025 | 75.42% (0.75421) | 98.84th | v4 (v2025.03.14) |
| Dec 27, 2025 | 74.09% (0.74090) | 98.79th | v4 (v2025.03.14) |
| Dec 24, 2025 | 75.42% (0.75421) | 98.84th | v4 (v2025.03.14) |
| Nov 3, 2025 | 72.70% (0.72703) | 98.72th | v4 (v2025.03.14) |
| Oct 28, 2025 | 76.67% (0.76667) | 98.89th | v4 (v2025.03.14) |
| Oct 27, 2025 | 71.22% (0.71221) | 98.65th | v4 (v2025.03.14) |
| Oct 1, 2025 | 76.67% (0.76667) | 98.91th | v4 (v2025.03.14) |
| Mar 30, 2025 | 71.22% (0.71221) | 98.62th | v4 (v2025.03.14) |
| Mar 29, 2025 | 65.41% (0.65413) | 97.90th | v4 (v2025.03.14) |
| Mar 17, 2025 | 71.22% (0.71221) | 98.62th | v4 (v2025.03.14) |
| Dec 17, 2024 | 90.04% (0.90037) | 99.05th | v3 (v2023.03.01) |
| Dec 4, 2024 | 91.34% (0.91343) | 99.02th | v3 (v2023.03.01) |
| Aug 12, 2024 | 92.56% (0.92562) | 99.05th | v3 (v2023.03.01) |
| Apr 20, 2024 | 94.00% (0.94001) | 99.11th | v3 (v2023.03.01) |
| Mar 12, 2024 | 93.43% (0.93433) | 99.02th | v3 (v2023.03.01) |
| Dec 29, 2023 | 93.23% (0.93232) | 98.87th | v3 (v2023.03.01) |
| Jun 30, 2023 | 94.14% (0.94135) | 98.78th | v3 (v2023.03.01) |
| May 25, 2023 | 95.21% (0.95209) | 98.96th | v3 (v2023.03.01) |
| Apr 19, 2023 | 95.47% (0.95473) | 98.98th | v3 (v2023.03.01) |
| Mar 14, 2023 | 95.90% (0.95896) | 99.06th | v3 (v2023.03.01) |
| Mar 7, 2023 | 96.13% (0.96131) | 99.12th | v3 (v2023.03.01) |
| Mar 6, 2023 | 20.65% (0.20648) | 96.51th | v2 (v2022.01.01) |
| Apr 1, 2022 | 20.65% (0.20648) | 96.20th | v2 (v2022.01.01) |
| Feb 4, 2022 | 20.65% (0.20648) | 94.08th | v2 (v2022.01.01) |
No CWE recorded.
References (11)
- http://secunia.com/advisories/27134 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://secunia.com/advisories/27153 third-party-advisoryx_refsource_SECUNIAVendor Advisory
- http://securitytracker.com/id?1018787 vdb-entryx_refsource_SECTRACK
- http://www.securityfocus.com/archive/1/482023/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/archive/1/482366/100/0/threaded vendor-advisoryx_refsource_HP
- http://www.securityfocus.com/bid/25974 vdb-entryx_refsource_BID
- http://www.us-cert.gov/cas/techalerts/TA07-282A.html third-party-advisoryx_refsource_CERTUS Government Resource
- http://www.vupen.com/english/advisories/2007/3438 vdb-entryx_refsource_VUPENVendor Advisory
- http://www.zerodayinitiative.com/advisories/ZDI-07-055.html x_refsource_MISC
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-058 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2310 vdb-entrysignaturex_refsource_OVAL
Change history (0)
No recorded changes yet.