Microsoft Index Server allows remote attackers to view the source code of ASP files by appending a %20 to the filename in the CiWebHitsFile argument to the null.htw URL.
CVE-2000-0302
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 5.0 — v2 rates that MEDIUM (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:L/Au:N/C:P/I:N/A:N. 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 78.4% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- High exploitation likelihood — EPSS 78%
- Public exploit code is available (Exploit-DB (verified), epss top5pct, epss high, public exploit)
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v2.0 (legacy)
- 5.0MEDIUMNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 5.0(low)
- EG Risk
- 58(Track)EG Risk 58/100SSVC: 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 computedSeverity50% × 45%Exploitation78% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 78%
- EPSS %ILE
- 100%
- KEV
- Not listed
Published
March 31, 2000
Last Modified
June 16, 2026
References (8)
- cve@mitrehttp://marc.info/?l=bugtraq&m=95453598317340&w=2
- cve@mitrehttp://www.osvdb.org/271
- cve@mitrehttp://www.securityfocus.com/bid/1084
- cve@mitrehttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-006
- af854a3a-2127-422b-91ae-364da2661108http://marc.info/?l=bugtraq&m=95453598317340&w=2
- af854a3a-2127-422b-91ae-364da2661108http://www.osvdb.org/271
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/1084
- af854a3a-2127-422b-91ae-364da2661108https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-006
Data Freshness Timeline
(refreshed 5× in last 7d / 8× 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.
- 2026-07-26 13:20 UTCEG score recompute▲ 5.00
- 2026-07-23 00:42 UTCEG score recompute
- 2026-07-23 00:24 UTCEG score recompute▼ 7.90
- 2026-07-22 23:47 UTCEG score recompute▲ 7.90
- 2026-07-22 21:27 UTCEG score recompute
- 2026-07-15 16:53 UTCEPSS rescore
- 2026-07-11 08:22 UTCEPSS rescore
- 2026-07-04 06:26 UTCEPSS rescore
- 2026-06-27 03:04 UTCEPSS rescore
- 2026-06-24 14:01 UTCEPSS rescore
- 2026-06-23 21:29 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
- 2026-06-18 17:49 UTCEPSS rescore
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-16 17:49 UTCEPSS rescore
- 2026-06-13 22:56 UTCEPSS rescore
- 2026-06-12 23:07 UTCEPSS rescore
- 2026-06-11 13:55 UTCEPSS rescore
- 2026-06-10 22:13 UTCEPSS rescore
- 2026-06-10 13:17 UTCEPSS rescore
- 2026-06-08 14:13 UTCEPSS rescore
- 2026-06-07 15:21 UTCEPSS rescore
- 2026-06-05 06:07 UTCEPSS rescore
- 2026-06-04 13:09 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
Show 12 moreShow fewer
- 2026-06-01 13:48 UTCEPSS rescore
- 2026-05-31 21:48 UTCEG score recompute
- 2026-05-31 21:48 UTCGHSA enrichment
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-27 13:37 UTCEPSS rescore
- 2026-05-27 13:37 UTCEPSS rescore
- 2026-05-24 16:42 UTCEPSS rescore
- 2026-05-21 22:38 UTCEPSS rescore
- 2026-05-20 22:36 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-19830✓ verifiedFirst seen Mar 31, 2000
Microsoft Index Server 2.0 - '%20' ASP Source Disclosure
Open source ↗
Frequently asked(4)
What is CVE-2000-0302?
When was CVE-2000-0302 disclosed?
Is CVE-2000-0302 actively exploited?
How do I remediate CVE-2000-0302?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2000-0302
Is Your Infrastructure Affected by CVE-2000-0302?
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