CVE-2000-0638

Exp

bb-hostsvc.sh in Big Brother 1.4h1 and earlier allows remote attackers to read arbitrary files via a .. (dot dot) attack on the HOSTSVC parameter.

Published: 2000-07-11 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2000-0638 is rated High Exploit Risk (83.4/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 4.11%). 1 public exploit reference(s) are indexed (Exploit-DB). 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-2000-0638

EDB-ID Source Kind Published Link
20068 exploit_db edb 2000-07-11 Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2000-0638

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 6.99% 4.11% -2.88%
2 2025-09-28 4.22% 6.99% +2.77%
3 2025-03-30 — 4.22% —

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2000-0638

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-2000-0638

Affected software / configurations for CVE-2000-0638

Vendor Product Version Raw CPE
sean_macguire big_brother 1.0 cpe:2.3:a:sean_macguire:big_brother:1.0:*:*:*:*:*:*:*
sean_macguire big_brother 1.1 cpe:2.3:a:sean_macguire:big_brother:1.1:*:*:*:*:*:*:*
sean_macguire big_brother 1.2 cpe:2.3:a:sean_macguire:big_brother:1.2:*:*:*:*:*:*:*
sean_macguire big_brother 1.3 cpe:2.3:a:sean_macguire:big_brother:1.3:*:*:*:*:*:*:*
sean_macguire big_brother 1.3b cpe:2.3:a:sean_macguire:big_brother:1.3b:*:*:*:*:*:*:*
sean_macguire big_brother 1.4 cpe:2.3:a:sean_macguire:big_brother:1.4:*:*:*:*:*:*:*
sean_macguire big_brother 1.4g cpe:2.3:a:sean_macguire:big_brother:1.4g:*:*:*:*:*:*:*
sean_macguire big_brother 1.4h cpe:2.3:a:sean_macguire:big_brother:1.4h:*:*:*:*:*:*:*
sean_macguire big_brother 1.4h1 cpe:2.3:a:sean_macguire:big_brother:1.4h1:*:*:*:*:*:*:*
sean_macguire big_brother 1.09b cpe:2.3:a:sean_macguire:big_brother:1.09b:*:*:*:*:*:*:*
sean_macguire big_brother 1.09c cpe:2.3:a:sean_macguire:big_brother:1.09c:*:*:*:*:*:*:*
sean_macguire big_brother 1.09d cpe:2.3:a:sean_macguire:big_brother:1.09d:*:*:*:*:*:*:*

References for CVE-2000-0638

cvelogic Threat Intelligence