MEDIUMPOC
CVE-2006-6563
NVD-CWE-OtherPublished: December 15, 2006· Updated: Jun 16, 2026
6.6
CVSS v3.1
Official Description
Stack-based buffer overflow in the pr_ctrls_recv_request function in ctrls.c in the mod_ctrls module in ProFTPD before 1.3.1rc1 allows local users to execute arbitrary code via a large reqarglen length value.
Technical Analysis
CVE-2006-6563 requires local access, meaning attackers must already have a foothold on the target system.
Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.
A proof-of-concept (PoC) exploit exists for CVE-2006-6563. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityM
Privileges Req.
User Interaction
Scope
Impact
ConfidentialityC
IntegrityC
AvailabilityC
AV:L/AC:M/Au:S/C:C/I:C/A:C
Affected Vendors & Products
proftpd_project1 product(s)
proftpd
Source: NVD CPE · 2 total CPE entries
Exploit & PoC Resources
POC AVAILABLEProof-of-concept code exists
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (34)
→
http://secunia.com/advisories/23371Exploit · Patch · Vendor Advisory
→
http://www.securityfocus.com/bid/21587Exploit · Patch
Quick Facts
CVE IDCVE-2006-6563
CVSS Score6.6 / 10
SeverityMEDIUM
WeaknessNVD-CWE-Other
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedDec 15, 2006
Related CVEs (NVD-CWE-Other)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2006-6563 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.