The Event System in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1, and Server 2008 does not proper
Noroxi assessment
Priority: Plan (action score 47/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 36.2% (FIRST EPSS); higher than 98.4% of all records.
- No special conditions are required; it is repeatable.
- According to the record, no fixed version is available yet.
Add it to your regular patch cycle. Update when a fix is released; follow the vendor's advisory.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
The Event System in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1, and Server 2008 does not properly validate per-user subscriptions, which allows remote authenticated users to execute arbitrary code via a crafted event subscription request.
- Published
- Aug 13, 2008
- Updated
- Jun 16, 2026
- EPSS
- 36.3% · 98th percentile
- CWE
- CWE-20
Report tools
Action score
47
Plan
Add it to your regular patch cycle.
- CVSS
- 36 / 40 · 9.0 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 11 / 30 · 36.3%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- No fixed version yet
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| microsoft | windows-nt | cpe:2.3:o:microsoft:windows-nt |
| microsoft | windows 2000 | cpe:2.3:o:microsoft:windows_2000 |
| microsoft | windows 2003 server | cpe:2.3:o:microsoft:windows_2003_server |
| microsoft | windows vista | cpe:2.3:o:microsoft:windows_vista |
| microsoft | windows xp | cpe:2.3:o:microsoft:windows_xp |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- microsoft windows 2000all versions
- microsoft windows 2003 serverall versions
- microsoft windows vistaall versions
- microsoft windows xpall versions
- microsoft windows-nt2008
- microsoft windows-ntvista
- microsoft windows-ntxp
Same product
microsoft: all recordsOther highest-scoring records for the same primary product.
- CVE-2008-1087Stack-based buffer overflow in GDI in Microsoft Windows 2000 SP4, XP SP2, Server 2003 SP1 and SP2, Vista, and Server 2008 allows remote atta54Plan
- CVE-2008-1444Stack-based buffer overflow in Microsoft DirectX 7.0 and 8.1 on Windows 2000 SP4 allows remote attackers to execute arbitrary code via a Syn49Plan
- CVE-2006-0005Buffer overflow in the plug-in for Microsoft Windows Media Player (WMP) 9 and 10, when used in browsers other than Internet Explorer and set49Plan
- CVE-2008-1436Microsoft Windows XP Professional SP2, Vista, and Server 2003 and 2008 does not properly assign activities to the (1) NetworkService and (2)47Plan
- CVE-2008-1435Windows Explorer in Microsoft Windows Vista up to SP1, and Server 2008, allows user-assisted remote attackers to execute arbitrary code via 46Plan
- CVE-2008-0011Microsoft DirectX 8.1 through 9.0c, and DirectX on Microsoft XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1, and Server 2008, d46Plan
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- C · data can be read
- Integrity
- C · data or configuration can be modified
- Availability
- C · the service can be disrupted
- Attack complexity
- Low
- Confidentiality impact
- C
- Integrity impact
- C
- Availability impact
- C
Weakness class (CWE)
CWE-20 · Improper Input ValidationCVSS vector
AV:N/AC:L/Au:S/C:C/I:C/A:C
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- Buffer Overflow via Environment VariablesCAPEC-10likelihood: High · High
- Server Side Include (SSI) InjectionCAPEC-101likelihood: High · High
- Cross Zone ScriptingCAPEC-104likelihood: Medium · High
- Command Line Execution through SQL InjectionCAPEC-108likelihood: Low · Very High
- Object Relational Mapping InjectionCAPEC-109likelihood: Low · High
- SQL Injection through SOAP Parameter TamperingCAPEC-110likelihood: High · Very High
- Double EncodingCAPEC-120likelihood: Low · Medium
- Subverting Environment Variable ValuesCAPEC-13likelihood: High · Very High
ATT&CK techniques
- Obfuscated Files or InformationT1027
- Masquerading: Invalid Code SignatureT1036.001
- Steal Web Session CookieT1539
- Subvert Trust Controls: Code SigningT1553.002
- Impair Defenses:Impair Command History LoggingT1562.003
- Hijack Execution Flow:Dynamic Linker HijackingT1574.006
- Hijack Execution Flow:Path Interception by PATH Environment VariableT1574.007
Change log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
Show all references (7 more)Show less
- secunia.com/advisories/31417
- www.securityfocus.com/bid/30584
- www.securitytracker.com/id?1020677
- www.us-cert.gov/cas/techalerts/TA08-225A.html
- www.vupen.com/english/advisories/2008/2353
- docs.microsoft.com/en-us/security-updates/securitybulletins/2008/ms08-049
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6095
Vendor advisories and official records. Exploit/PoC links are deliberately left out.