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CVE-2002-0661

67
FAUCET Score

CVE-2002-0661 describes a directory traversal vulnerability in Apache HTTP Server versions 2.0 through 2.0.39 on Windows, OS/2, and Netware. This flaw allows remote attackers to read arbitrary files and execute commands by using specially crafted dot-dot sequences with backslashes. With a CVSS score of 7.5, this vulnerability is considered highly severe, requiring no authentication and low attack complexity, leading to potential compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, exploit code is publicly available via ExploitDB, indicating a known attack method, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
2.0CPE matchmatch criteria
cpe:2.3:a:apache:http_server:2.0:*:*:*:*:*:*:*
2.0.28CPE matchmatch criteria
cpe:2.3:a:apache:http_server:2.0.28:*:*:*:*:*:*:*
2.0.28CPE matchmatch criteria
cpe:2.3:a:apache:http_server:2.0.28:beta:*:*:*:*:*:*
2.0.28CPE matchmatch criteria
cpe:2.3:a:apache:http_server:2.0.28:beta:win32:*:*:*:*:*
2.0.32CPE matchmatch criteria
cpe:2.3:a:apache:http_server:2.0.32:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
69.70%
Probability of exploitation in next 30 days
EPSS Percentile
99.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-21697 · Aug 9, 2002
This CVE's current EPSS score of 0.6970 is in the 99th percentile among its peer group of 51,506 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

httpd.apache.org / info/security_bulletin_20020908a.txt
PatchVendor Advisory
marc.info
marc.info
lists.apache.org / thread.html/54a42d4b01968df1117cea77fc53d6beb931c0e05936ad02af93e9ac%40%3Ccvs.httpd.apache.org%3E
lists.apache.org / thread.html/5df9bfb86a3b054bb985a45ff9250b0332c9ecc181eec232489e7f79%40%3Ccvs.httpd.apache.org%3E
lists.apache.org / thread.html/r0276683d8e1e07153fc8642618830ac0ade85b9ae0dc7b07f63bb8fc%40%3Ccvs.httpd.apache.org%3E
lists.apache.org / thread.html/r2cb985de917e7da0848c440535f65a247754db8b2154a10089e4247b%40%3Ccvs.httpd.apache.org%3E
lists.apache.org / thread.html/r5001ecf3d6b2bdd0b732e527654248abb264f08390045d30709a92f6%40%3Ccvs.httpd.apache.org%3E
lists.apache.org / thread.html/r5f9c22f9c28adbd9f00556059edc7b03a5d5bb71d4bb80257c0d34e4%40%3Ccvs.httpd.apache.org%3E
lists.apache.org / thread.html/r8828e649175df56f1f9e3919938ac7826128525426e2748f0ab62feb%40%3Ccvs.httpd.apache.org%3E
lists.apache.org / thread.html/r9e8622254184645bc963a1d47c5d47f6d5a36d6f080d8d2c43b2b142%40%3Ccvs.httpd.apache.org%3E
lists.apache.org / thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
lists.apache.org / thread.html/rb9c9f42dafa25d2f669dac2a536a03f2575bc5ec1be6f480618aee10%40%3Ccvs.httpd.apache.org%3E
lists.apache.org / thread.html/rd00b45b93fda4a5bd013b28587207d0e00f99f6e3308dbb6025f3b01%40%3Ccvs.httpd.apache.org%3E
lists.apache.org / thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
iss.net / security_center/static/9808.php
securityfocus.com / bid/5434