CVE-2006-6558

Exp

Crob FTP Server 3.6.1 b.263 allows remote attackers to cause a denial of service via a long series of "?A" sequences in the (1) LIST and possibly (2) NLST command.

Published: 2006-12-14 Last update: 2026-04-23 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2006-6558 is rated High Exploit Risk (67.9/100): CVSS Medium severity, with high exploitation likelihood (EPSS 6.58%, 91th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.10% 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-2006-6558

EDB-ID Source Kind Published Link
2926 exploit_db edb 2006-12-13 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2006-6558

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 2025-08-02 5.49% 6.58% +1.10%
2 2025-03-30 7.61% 5.49% -2.13%
3 2025-03-29 — 7.61% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2006-6558

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P 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:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2006-6558

OS Trackers for CVE-2006-6558

vendor priority summary link
alpine — CVE-2006-6558: no source package rows; 0 state rows across 0 repos (none); fixed 0, open 0. https://security.alpinelinux.org/vuln/CVE-2006-6558

Affected software / configurations for CVE-2006-6558

Vendor Product Version Raw CPE
crob crob_ftp_server 3.6.1_b.263 cpe:2.3:a:crob:crob_ftp_server:3.6.1_b.263:*:*:*:*:*:*:*

References for CVE-2006-6558

cvelogic Threat Intelligence