CVE-2001-1496

9.8 CRITICAL
Published: December 31, 2001 Modified: April 16, 2026
View on NVD

Description

Off-by-one buffer overflow in Basic Authentication in Acme Labs thttpd 1.95 through 2.20 allows remote attackers to cause a denial of service and possibly execute arbitrary code.

AI Explanation

Get an AI-powered plain-language explanation of this vulnerability and remediation steps.

Login to generate AI explanation

CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
http://www.securityfocus.com/archive/1/241310
Source: cve@mitre.org
Broken Link Third Party Advisory VDB Entry
http://www.securityfocus.com/archive/1/241953
Source: cve@mitre.org
Broken Link Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/3562
Source: cve@mitre.org
Broken Link Third Party Advisory VDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/7595
Source: cve@mitre.org
Third Party Advisory VDB Entry
http://www.securityfocus.com/archive/1/241310
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link Third Party Advisory VDB Entry
http://www.securityfocus.com/archive/1/241953
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/3562
Source: af854a3a-2127-422b-91ae-364da2661108
Broken Link Third Party Advisory VDB Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/7595
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory VDB Entry

8 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
13.9%
94th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-193

Affected Vendors

acme

Related CVEs

CVE-2026-40962 4.9
CVE-2026-40505 3.3
CVE-2026-40504 9.8
CVE-2026-3299 6.4
CVE-2026-40960 8.1