IIS 4.0 and 5.0 allows remote attackers to read documents outside of the web root, and possibly execute arbitrary commands, via malformed URLs that contain UNICODE encoded characters, aka the "Web Server Folder Traversal" vulnerability.
CVE-2000-0884
This CVE was only ever scored under CVSS v2.0. NVD CVSS v2.0 base 7.5 — 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:L/Au:N/C:P/I:P/A:P. 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 70.5% exploitation probability in the next 30 days, which is reflected in EG Risk but does not lift the v2 base. Confidence: LOW.
- 17 internet-exposed hosts are running an affected version right now
- Public exploit code is available (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.
17 internet-exposed hosts are running an affected version of CVE-2000-0884 right now.
EchelonGraph is the only CVE feed that fuses live vulnerability intelligence with its own live internet-exposure radar — so you see not just that a CVE is exploited, but how much of the internet is exposed to it right now.
- CVSS v2.0 (legacy)
- 7.5HIGHNVD never assigned a CVSS v3 rating to this CVE
- EG Score
- 7.5(low)
- EG Risk
- 66(Track)EG Risk 66/100SSVC: 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 computedSeverity75% × 45%Exploitation71% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 45%
- EPSS %ILE
- 99%
- KEV
- Not listed
Published
December 19, 2000
Last Modified
June 16, 2026
References (10)
- cve@mitrehttp://www.osvdb.org/436
- cve@mitrehttp://www.securityfocus.com/bid/1806
- cve@mitrehttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-078
- cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/5377
- cve@mitrehttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A44
- af854a3a-2127-422b-91ae-364da2661108http://www.osvdb.org/436
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/1806
- af854a3a-2127-422b-91ae-364da2661108https://docs.microsoft.com/en-us/security-updates/securitybulletins/2000/ms00-078
- af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/5377
- af854a3a-2127-422b-91ae-364da2661108https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A44
Data Freshness Timeline
(refreshed 5× 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.
- 2026-07-26 13:20 UTCEG score recompute▲ 7.50
- 2026-07-23 00:42 UTCEG score recompute
- 2026-07-23 00:24 UTCEG score recompute▼ 6.60
- 2026-07-22 23:47 UTCEG score recompute▲ 6.60
- 2026-07-22 21:27 UTCEG score recompute
- 2026-07-20 17:02 UTCEPSS rescore
- 2026-07-15 16:53 UTCEPSS rescore
- 2026-07-13 06:07 UTCEPSS rescore
- 2026-07-04 06:26 UTCEPSS rescore
- 2026-07-02 14:00 UTCEPSS rescore
- 2026-06-27 03:04 UTCEPSS rescore
- 2026-06-23 21:29 UTCEPSS rescore
- 2026-06-21 01:56 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
- 2026-06-14 23:13 UTCEPSS rescore
- 2026-06-13 22:56 UTCEPSS rescore
- 2026-06-12 23:07 UTCEPSS rescore
- 2026-06-10 22:13 UTCEPSS rescore
- 2026-06-08 14:13 UTCEPSS rescore
- 2026-06-06 13:44 UTCEPSS rescore
- 2026-06-04 13:09 UTCEPSS rescore
- 2026-06-02 20:10 UTCEPSS rescore
Show 18 moreShow fewer
- 2026-06-01 13:48 UTCEPSS rescore
- 2026-05-31 22:27 UTCEPSS rescore
- 2026-05-31 21:11 UTCEG score recompute
- 2026-05-31 21:11 UTCGHSA enrichment
- 2026-05-31 00:13 UTCEPSS rescore
- 2026-05-31 00:13 UTCEPSS rescore
- 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
- 2026-05-28 13:42 UTCEPSS rescore
- 2026-05-27 13:37 UTCEPSS rescore
- 2026-05-27 13:37 UTCEPSS rescore
- 2026-05-22 21:15 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
(9 references)Working exploit code is in the public domain (9 Exploit-DB entries). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- Exploit-DBEDB-189✓ verifiedFirst seen Nov 18, 2000
Microsoft IIS 4.0/5.0 and PWS - Extended Unicode Directory Traversal (6)
Open source ↗ - Exploit-DBEDB-191✓ verifiedFirst seen Nov 18, 2000
Microsoft IIS 4.0/5.0 and PWS - Extended Unicode Directory Traversal (7)
Open source ↗ - Exploit-DBEDB-192✓ verifiedFirst seen Nov 18, 2000
Microsoft IIS 4.0/5.0 and PWS - Extended Unicode Directory Traversal (8)
Open source ↗ - Exploit-DBEDB-190✓ verifiedFirst seen Nov 18, 2000
Microsoft IIS 4.0/5.0 and PWS - Extended Unicode Directory Traversal (9)
Open source ↗ - Exploit-DBEDB-20299✓ verifiedFirst seen Oct 21, 2000
Microsoft IIS 4.0/5.0 and PWS - Extended Unicode Directory Traversal (2)
Open source ↗ - Exploit-DBEDB-20302✓ verifiedFirst seen Oct 17, 2000
Microsoft IIS 4.0/5.0 and PWS - Extended Unicode Directory Traversal (5)
Open source ↗ - Exploit-DBEDB-20300✓ verifiedFirst seen Oct 17, 2000
Microsoft IIS 4.0/5.0 and PWS - Extended Unicode Directory Traversal (3)
Open source ↗ - Exploit-DBEDB-20301✓ verifiedFirst seen Oct 17, 2000
Microsoft IIS 4.0/5.0 and PWS - Extended Unicode Directory Traversal (4)
Open source ↗ - Exploit-DBEDB-20298✓ verifiedFirst seen Oct 17, 2000
Microsoft IIS 4.0/5.0 and PWS - Extended Unicode Directory Traversal (1)
Open source ↗
Frequently asked(4)
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