Stack-based buffer overflow in certain Active Directory service functions in LSASRV.DLL of the Local Security Authority Subsystem Service (L
Stack-based buffer overflow in certain Active Directory service functions in LSASRV.DLL of the Local Security Authority Subsystem Service (LSASS) in Microsoft Windows NT 4.0 SP6a, 2000 SP2 through SP4, XP SP1, Server 2003, NetMeeting, Windows 98, and Windows ME, allows remote attackers to execute arbitrary code via a packet that causes the DsRolerUpgradeDownlevelServer function to create long debug entries for the DCPROMO.LOG log file, as exploited by the Sasser worm.
- Published
- Jun 1, 2004
- Updated
- Jun 16, 2026
- EPSS
- 85.5% · 100th percentile
- CWE
- —
Sign in to follow · You’ll be notified if a followed record enters KEV, gets an exploit or is updated.
Report tools
Action score
56
Plan
Add it to your regular patch cycle.
- CVSS
- 30 / 40 · 7.5 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 26 / 30 · 85.5%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| microsoft | netmeeting | cpe:2.3:a:microsoft:netmeeting |
| microsoft | windows 2000 | cpe:2.3:o:microsoft:windows_2000 |
| microsoft | windows 2003 server | cpe:2.3:o:microsoft:windows_2003_server |
| microsoft | windows 98 | cpe:2.3:o:microsoft:windows_98 |
| microsoft | windows me | cpe:2.3:o:microsoft:windows_me |
| microsoft | windows nt | cpe:2.3:o:microsoft:windows_nt |
| 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 netmeetingall versions
- microsoft windows 2000all versions
- microsoft windows 2003 serverr2
- microsoft windows 98all versions
- microsoft windows meall versions
- microsoft windows nt4.0
- microsoft windows xpall versions
Same product
microsoft: all recordsOther highest-scoring records for the same primary product.
- CVE-2003-0719Buffer overflow in the Private Communications Transport (PCT) protocol implementation in the Microsoft SSL library, as used in Microsoft Win54Plan
- CVE-2006-2919Unspecified vulnerability in Microsoft NetMeeting 3.01 allows remote attackers to cause a denial of service (crash or CPU consumption) and p38Monitor
- CVE-2004-0117Unknown vulnerability in the H.323 protocol implementation in Windows 98, Windows 2000, Windows XP, and Windows Server 2003 allows remote at38Monitor
- CVE-1999-0332Buffer overflow in NetMeeting allows denial of service and remote command execution.34Monitor
- CVE-2000-0983Microsoft NetMeeting with Remote Desktop Sharing enabled allows remote attackers to cause a denial of service (CPU utilization) via a sequen26Monitor
- CVE-1999-1097Microsoft NetMeeting 2.1 allows one client to read the contents of another client's clipboard via a CTRL-C in the chat box when the box is e26Monitor
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
Weaponized
A ready exploit tool or active in-the-wild use is known for this vulnerability. This should be your top priority.
Evidence
- Metasploit module ×1
- Exploit-DB entry ×3
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Exploit-DB entry | remote | 2010-07-03 |
| Exploit-DB entry | remote | 2004-04-24 |
| Exploit-DB entry | remote | 2004-04-29 |
| Metasploit module | exploit/windows/smb/ms04_011_lsassMS04-011 Microsoft LSASS Service DsRolerUpgradeDownlevelServer Overflowexploit | 2004-04-13 |
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.
- Metasploit-49 d
- First PoC-38 d
- Published
- TodaySep 30, 2026+8157 d
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
- P · data can be read
- Integrity
- P · data or configuration can be modified
- Availability
- P · the service can be disrupted
- Attack complexity
- Low
- Confidentiality impact
- P
- Integrity impact
- P
- Availability impact
- P
Weakness class (CWE)
—
CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:P
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.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
No changes recorded on tracked fields yet. Score, KEV, exploit maturity and fix status changes appear here.
References
- lists.grok.org.uk/pipermail/full-disclosure/2004-April/020069.html
- marc.info/?l=bugtraq&m=108325860431471&w=2
- www.ciac.org/ciac/bulletins/o-114.shtml
- www.eeye.com/html/Research/Advisories/AD20040413C.html
- www.kb.cert.org/vuls/id/753212
- www.securityfocus.com/bid/10108
- www.us-cert.gov/cas/techalerts/TA04-104A.html
- docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-011
- exchange.xforce.ibmcloud.com/vulnerabilities/15699
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A883
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A898
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A919
Vendor advisories and official records. Exploit/PoC links are deliberately left out.