Directory traversal vulnerability in Apache 2.0 through 2.0.39 on Windows, OS2, and Netware allows remote attackers to read arbitrary files and execute commands via .. (dot dot) sequences containing \ (backslash) characters.
CVE-2002-0661
Score elevated to 9.0 because EPSS predicts 91% probability of exploitation within the next 30 days (top 0.3% of all CVEs). Confidence: see factors.
- 1 internet-exposed host is running an affected version right now
- High exploitation likelihood — EPSS 70%
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
1 internet-exposed host is running an affected version of CVE-2002-0661 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 v3
- —
- EG Score
- 9.0(low)
- EPSS
- 99.3%
- KEV
- Not listed
Published
August 12, 2002
Last Modified
June 16, 2026
References (34)
- cve@mitrehttp://httpd.apache.org/info/security_bulletin_20020908a.txt
- cve@mitrehttp://marc.info/?l=bugtraq&m=102892744011436&w=2
- cve@mitrehttp://marc.info/?l=bugtraq&m=102951160411052&w=2
- cve@mitrehttp://www.iss.net/security_center/static/9808.php
- cve@mitrehttp://www.securityfocus.com/bid/5434
- cve@mitrehttps://lists.apache.org/thread.html/54a42d4b01968df1117cea77fc53d6beb931c0e05936ad02af93e9ac%40%3Ccvs.httpd.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/5df9bfb86a3b054bb985a45ff9250b0332c9ecc181eec232489e7f79%40%3Ccvs.httpd.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/r0276683d8e1e07153fc8642618830ac0ade85b9ae0dc7b07f63bb8fc%40%3Ccvs.httpd.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/r2cb985de917e7da0848c440535f65a247754db8b2154a10089e4247b%40%3Ccvs.httpd.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/r5001ecf3d6b2bdd0b732e527654248abb264f08390045d30709a92f6%40%3Ccvs.httpd.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/r5f9c22f9c28adbd9f00556059edc7b03a5d5bb71d4bb80257c0d34e4%40%3Ccvs.httpd.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/r8828e649175df56f1f9e3919938ac7826128525426e2748f0ab62feb%40%3Ccvs.httpd.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/r9e8622254184645bc963a1d47c5d47f6d5a36d6f080d8d2c43b2b142%40%3Ccvs.httpd.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
- cve@mitrehttps://lists.apache.org/thread.html/rb9c9f42dafa25d2f669dac2a536a03f2575bc5ec1be6f480618aee10%40%3Ccvs.httpd.apache.org%3E
Data Freshness Timeline
(refreshed 1× in last 7d / 6× 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.
- 2026-07-09 14:15 UTCOSV refresh
- 2026-07-04 06:26 UTCEPSS rescore
- 2026-06-24 14:01 UTCEPSS rescore
- 2026-06-23 21:29 UTCEPSS rescore
- 2026-06-21 02:16 UTCOSV refresh
- 2026-06-17 17:49 UTCEPSS rescore
- 2026-06-12 23:07 UTCEPSS rescore
- 2026-06-11 13:55 UTCEPSS rescore
- 2026-06-10 22:13 UTCEPSS rescore
- 2026-06-06 13:44 UTCEPSS rescore
- 2026-05-31 22:27 UTCEPSS rescore
- 2026-05-31 19:15 UTCEG score recompute
- 2026-05-31 19:15 UTCGHSA enrichment
- 2026-05-27 13:37 UTCEPSS rescore
- 2026-05-27 13:37 UTCEPSS rescore
- 2026-05-26 13:41 UTCEPSS rescore
- 2026-05-26 13:41 UTCEPSS rescore
- 2026-05-26 13:41 UTCEPSS rescore
- 2026-05-26 07:16 UTCEPSS rescore
- 2026-05-26 07:16 UTCEPSS rescore
- 2026-05-22 21:15 UTCEPSS rescore
- 2026-05-21 22:38 UTCEPSS rescore
- 2026-05-21 16:06 UTCOSV refresh
- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-20 11:20 UTCEPSS rescore
Show 2 moreShow fewer
- 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-21697✓ verifiedFirst seen Aug 9, 2002
Apache 2.0 - Encoded Backslash Directory Traversal
Open source ↗
Frequently asked(4)
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