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CVE-2001-1242

25
FAUCET Score

CVE-2001-1242 describes a directory traversal vulnerability in Un-CGI version 1.9 and earlier. This flaw allows remote attackers to execute arbitrary code by manipulating HTML forms with ".." (dot dot) sequences. Rated with a CVSS score of 7.5 (HIGH), it poses a significant risk due to its low attack complexity and potential for complete compromise of confidentiality, integrity, and availability. While there is no known active exploitation, publicly available exploit code, or KEV listing, the vulnerability has garnered notable community discussion, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
1.0CPE matchmatch criteria
cpe:2.3:a:steve_grimm:un-cgi:1.0:*:*:*:*:*:*:*
1.1CPE matchmatch criteria
cpe:2.3:a:steve_grimm:un-cgi:1.1:*:*:*:*:*:*:*
1.2CPE matchmatch criteria
cpe:2.3:a:steve_grimm:un-cgi:1.2:*:*:*:*:*:*:*
1.3CPE matchmatch criteria
cpe:2.3:a:steve_grimm:un-cgi:1.3:*:*:*:*:*:*:*
1.4CPE matchmatch criteria
cpe:2.3:a:steve_grimm:un-cgi:1.4:*:*:*:*:*:*:*

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
2.98%
Probability of exploitation in next 30 days
EPSS Percentile
85.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0298 is in the 75th percentile among its peer group of 51,506 CVEs.

Social Chatter

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

archives.neohapsis.com / archives/bugtraq/2001-07/0287.html
archives.neohapsis.com / archives/bugtraq/2001-07/0349.html
iss.net / security_center/static/6846.php
PatchVendor Advisory
midwinter.com / ~koreth/uncgi-changes.html
securityfocus.com / bid/3056