CVE-2001-0173

Exp

Buffer overflow in qDecoder library 5.08 and earlier, as used in CrazyWWWBoard, CrazySearch, and other CGI programs, allows remote attackers to execute arbitrary commands via a long MIME Content-Type header.

Published: 2001-05-03 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2001-0173 is rated High Exploit Risk (89.3/100): CVSS Critical severity, with high exploitation likelihood (EPSS 6.03%, 92th percentile). 3 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.97% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2001-0173

EDB-ID Source Kind Published Link
20606 exploit_db edb 2000-03-26 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2001-0173

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 4.06% 6.03% +1.97%
2 2025-09-13 4.85% 4.06% -0.79%
3 2025-03-30 — 4.85% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2001-0173

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 2.0 HIGH
AV:N/AC:L/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 10.0 10.0 [email protected]

Weakness enumeration for CVE-2001-0173

Affected software / configurations for CVE-2001-0173

Vendor Product Version Raw CPE
nobreak_technologies crazywwwboard 3.0.1 cpe:2.3:a:nobreak_technologies:crazywwwboard:3.0.1:*:*:*:*:*:*:*
nobreak_technologies crazywwwboard 98 cpe:2.3:a:nobreak_technologies:crazywwwboard:98:*:*:*:*:*:*:*
nobreak_technologies crazywwwboard 98pe cpe:2.3:a:nobreak_technologies:crazywwwboard:98pe:*:*:*:*:*:*:*
nobreak_technologies crazywwwboard 2000.0lepx cpe:2.3:a:nobreak_technologies:crazywwwboard:2000.0lepx:*:*:*:*:*:*:*
nobreak_technologies crazywwwboard 2000.0px cpe:2.3:a:nobreak_technologies:crazywwwboard:2000.0px:*:*:*:*:*:*:*
nobreak_technologies crazywwwboard 2000lepx cpe:2.3:a:nobreak_technologies:crazywwwboard:2000lepx:*:*:*:*:*:*:*
nobreak_technologies crazywwwboard 2000px cpe:2.3:a:nobreak_technologies:crazywwwboard:2000px:*:*:*:*:*:*:*
qdecoder qdecoder 4.0 cpe:2.3:a:qdecoder:qdecoder:4.0:*:*:*:*:*:*:*
qdecoder qdecoder 4.0.1 cpe:2.3:a:qdecoder:qdecoder:4.0.1:*:*:*:*:*:*:*
qdecoder qdecoder 4.3 cpe:2.3:a:qdecoder:qdecoder:4.3:*:*:*:*:*:*:*
qdecoder qdecoder 4.3.1 cpe:2.3:a:qdecoder:qdecoder:4.3.1:*:*:*:*:*:*:*
qdecoder qdecoder 5.0 cpe:2.3:a:qdecoder:qdecoder:5.0:*:*:*:*:*:*:*
qdecoder qdecoder 5.0.1 cpe:2.3:a:qdecoder:qdecoder:5.0.1:*:*:*:*:*:*:*
qdecoder qdecoder 5.0.2 cpe:2.3:a:qdecoder:qdecoder:5.0.2:*:*:*:*:*:*:*
qdecoder qdecoder 5.0.3 cpe:2.3:a:qdecoder:qdecoder:5.0.3:*:*:*:*:*:*:*

References for CVE-2001-0173

cvelogic Threat Intelligence