srv.sys in the Server service in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1, and Server 2008 allows remote attackers to cause a denial of service (system crash) or possibly have unspecified other impact via an SMB WRITE_ANDX packet with an offset that is inconsistent with the packet size, related to "insufficiently validating the buffer size," as demonstrated by a request to the \PIPE\lsarpc named pipe, aka "SMB Validation Denial of Service Vulnerability."
CVE-2008-4114
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 7.1 — v2 rates that HIGH (v2 bands: LOW 0.0–3.9 / MEDIUM 4.0–6.9 / HIGH 7.0–10.0; v2 has no CRITICAL band). Vector AV:N/AC:M/Au:N/C:N/I:N/A:C. CVSS v2 is an older, coarser metric than v3.1/v4.0 (no Scope, no User Interaction, no Attack Requirements), so it is not directly comparable to a v3 or v4 score. NVD has never re-scored this record under v3. EPSS predicts 49.3% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- Public exploit code is available (Metasploit, Exploit-DB (verified), epss top5pct, public exploit)
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v2.0 (legacy)
- 7.1HIGHNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 7.1(low)
- EG Risk
- 62(Track)EG Risk 62/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity71% × 45%Exploitation65% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 49%
- EPSS %ILE
- 99%
- KEV
- Not listed
Published
September 16, 2008
Last Modified
April 23, 2026
References (26)
- cve@mitrehttp://secunia.com/advisories/31883
- cve@mitrehttp://www.reversemode.com/index.php?option=com_content&task=view&id=54&Itemid=1
- cve@mitrehttp://www.securityfocus.com/archive/1/496354/100/0/threaded
- cve@mitrehttp://www.securityfocus.com/bid/31179
- cve@mitrehttp://www.securitytracker.com/id?1020887
- cve@mitrehttp://www.us-cert.gov/cas/techalerts/TA09-013A.html
- cve@mitrehttp://www.vallejo.cc/proyectos/vista_SMB_write_DoS.htm
- cve@mitrehttp://www.vupen.com/english/advisories/2008/2583
- cve@mitrehttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-001
- cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/45146
- cve@mitrehttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5262
- cve@mitrehttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6044
- cve@mitrehttps://www.exploit-db.com/exploits/6463
- af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/31883
- af854a3a-2127-422b-91ae-364da2661108http://www.reversemode.com/index.php?option=com_content&task=view&id=54&Itemid=1
Data Freshness Timeline
(refreshed 1× in last 7d / 10× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-09-18 19:20 UTCEPSS rescore
- 2026-09-17 19:20 UTCEPSS rescore
- 2026-09-15 03:04 UTCEPSS rescore
- 2026-09-12 14:54 UTCEPSS rescore
- 2026-09-10 09:24 UTCEPSS rescore
- 2026-09-06 13:41 UTCEPSS rescore
- 2026-09-05 15:22 UTCEPSS rescore
- 2026-09-04 13:55 UTCEPSS rescore
- 2026-08-30 01:14 UTCEPSS rescore
- 2026-08-28 21:34 UTCEPSS rescore
- 2026-08-15 01:24 UTCEPSS rescore
- 2026-08-07 16:21 UTCEPSS rescore
- 2026-08-06 13:41 UTCEPSS rescore
- 2026-08-05 19:11 UTCEPSS rescore
- 2026-07-30 01:25 UTCEPSS rescore
- 2026-07-26 13:36 UTCEG score recompute▲ 7.10
- 2026-07-25 14:12 UTCEPSS rescore
- 2026-07-24 14:12 UTCEPSS rescore
- 2026-07-23 14:14 UTCEPSS rescore
- 2026-07-23 00:56 UTCEG score recompute
- 2026-07-23 00:35 UTCEG score recompute▼ 3.20
- 2026-07-23 00:01 UTCEG score recompute▲ 3.20
- 2026-07-22 21:40 UTCEG score recompute
- 2026-07-20 17:03 UTCEPSS rescore
- 2026-07-18 09:59 UTCEPSS rescore
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- 2026-07-16 16:58 UTCEPSS rescore
- 2026-07-15 16:54 UTCEPSS rescore
- 2026-07-15 16:54 UTCEPSS rescore
- 2026-07-15 01:55 UTCEPSS rescore
- 2026-07-13 22:25 UTCEPSS rescore
- 2026-07-13 06:07 UTCEPSS rescore
- 2026-07-11 08:22 UTCEPSS rescore
- 2026-07-11 08:22 UTCEPSS rescore
- 2026-07-09 19:04 UTCEPSS rescore
- 2026-07-08 15:09 UTCEPSS rescore
- 2026-07-06 16:23 UTCEPSS rescore
- 2026-07-04 06:27 UTCEPSS rescore
- 2026-07-02 14:00 UTCEPSS rescore
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-07-01 15:02 UTCEPSS rescore
- 2026-06-29 14:02 UTCEPSS rescore
- 2026-06-29 14:02 UTCEPSS rescore
- 2026-06-28 04:52 UTCEPSS rescore
- 2026-06-27 03:04 UTCEPSS rescore
- 2026-06-25 13:46 UTCEPSS rescore
- 2026-06-25 13:46 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-24 14:02 UTCEPSS rescore
- 2026-06-23 21:29 UTCEPSS rescore
- 2026-06-23 21:29 UTCEPSS rescore
- 2026-06-21 01:56 UTCEPSS rescore
- 2026-06-21 01:56 UTCEPSS rescore
- 2026-06-19 19:22 UTCEPSS rescore
- 2026-06-19 19:22 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-15 17:44 UTCEPSS rescore
- 2026-06-14 23:13 UTCEPSS rescore
- 2026-06-13 22:57 UTCEPSS rescore
- 2026-06-12 23:08 UTCEPSS rescore
- 2026-06-12 23:08 UTCEPSS rescore
- 2026-06-11 13:56 UTCEPSS rescore
- 2026-06-10 22:14 UTCEPSS rescore
- 2026-06-10 13:17 UTCEPSS rescore
- 2026-06-08 14:13 UTCEPSS rescore
- 2026-06-07 15:22 UTCEPSS rescore
- 2026-06-05 22:44 UTCEPSS rescore
- 2026-06-05 22:44 UTCEPSS rescore
- 2026-06-05 06:07 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-06-01 13:49 UTCEPSS rescore
- 2026-05-30 20:19 UTCEG score recompute
- 2026-05-30 20:19 UTCGHSA enrichment
- 2026-05-29 13:40 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-24 16:43 UTCEPSS rescore
- 2026-05-20 22:37 UTCEPSS rescore
- 2026-05-20 22:36 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Publicly available exploits
(2 references)Working exploit code is in the public domain (1 Metasploit module) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-6463✓ verifiedFirst seen Sep 15, 2008
Microsoft Windows - 'WRITE_ANDX' SMB Command Handling Kernel Denial of Service (Metasploit)
Open source ↗ - Metasploitauxiliary/dos/windows/smb/ms09_001_write✓ verifiedFirst seen Jan 1, 2008
Microsoft SRV.SYS WriteAndX Invalid DataOffset
Open source ↗
Frequently asked(4)
What is CVE-2008-4114?
When was CVE-2008-4114 disclosed?
Is CVE-2008-4114 actively exploited?
How do I remediate CVE-2008-4114?
Dependency Blast Radius
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