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CVE-2006-6558

24
FAUCET Score

CVE-2006-6558 describes a denial-of-service vulnerability in Crob FTP Server version 3.6.1 b.263. Remote attackers can exploit this by sending a long series of "?A" sequences within the LIST or NLST commands, causing the server to crash. This vulnerability has a CVSS score of 5.0, indicating a medium severity, and allows for an unauthenticated network attack with low complexity, leading to a partial denial of service. While not listed on CISA's KEV catalog, an exploit module is publicly available on ExploitDB, though there is no evidence of active exploitation, Metasploit modules, or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
3.6.1_b.263CPE matchmatch criteria
cpe:2.3:a:crob:crob_ftp_server:3.6.1_b.263:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.39%
Probability of exploitation in next 30 days
EPSS Percentile
92.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
ExploitDB: EDB-2926 · Dec 13, 2006
This CVE's current EPSS score of 0.0639 is in the 90th percentile among its peer group of 23,701 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

secunia.com / advisories/23365
ExploitVendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/30867
exploit-db.com / exploits/2926
securityfocus.com / bid/13848
vupen.com / english/advisories/2006/4994