HOMEVULNERABILITIESCVE-2001-0609
CRITICALPOC

CVE-2001-0609

CWE-193Published: August 2, 2001· Updated: Jun 16, 2026

9.8
CVSS v3.1

Official Description

Format string vulnerability in Infodrom cfingerd 1.4.3 and earlier allows a remote attacker to gain additional privileges via a malformed ident reply that is passed to the syslog function.

NVD Source

Technical Analysis

CVE-2001-0609 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

A proof-of-concept (PoC) exploit exists for CVE-2001-0609. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

infodrom1 product(s)
cfingerd
Source: NVD CPE · 1 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

PATCHhttp://archives.neohapsis.com/archives/bugtraq/2001-04/0202.html
PATCHhttp://www.securityfocus.com/bid/2576
PATCHhttp://archives.neohapsis.com/archives/bugtraq/2001-04/0202.html
PATCHhttp://www.securityfocus.com/bid/2576
ADVISORYhttps://exchange.xforce.ibmcloud.com/vulnerabilities/6364
ADVISORYhttps://exchange.xforce.ibmcloud.com/vulnerabilities/6364

All References (6)

→
http://archives.neohapsis.com/archives/bugtraq/2001-04/0202.htmlBroken Link · Exploit · Patch · Vendor Advisory
→
http://www.securityfocus.com/bid/2576Broken Link · Exploit · Patch · Third Party Advisory · VDB Entry · Vendor Advisory
→
https://exchange.xforce.ibmcloud.com/vulnerabilities/6364Third Party Advisory · VDB Entry
→
http://archives.neohapsis.com/archives/bugtraq/2001-04/0202.htmlBroken Link · Exploit · Patch · Vendor Advisory
→
http://www.securityfocus.com/bid/2576Broken Link · Exploit · Patch · Third Party Advisory · VDB Entry · Vendor Advisory
→
https://exchange.xforce.ibmcloud.com/vulnerabilities/6364Third Party Advisory · VDB Entry

Quick Facts

CVE IDCVE-2001-0609
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-193
CISA KEVNo
ExploitPOC
Affected1 vendor(s)
PublishedAug 2, 2001

Related CVEs (CWE-193)

CVE-2024-10442
10.0
CVE-2025-54349
10.0
CVE-2003-0252
9.8
CVE-2023-46853
9.8
CVE-2023-38429
9.8
CVE-2025-43973
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2001-0609 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.
← All Vulnerabilities·Search for CVE-2001-0609·NVD