CVE-2001-0167

NONECVSS 0.0Weaponized

0.0

Buffer overflow in AT&T WinVNC (Virtual Network Computing) client 3.3.3r7 and earlier allows remote attackers to execute arbitrary commands via a long rfbConnFailed packet with a long reason string.

CVSS v3: —
EG Score: —
EPSS: 98.5%
KEV: Not listed

Published

May 3, 2001

Last Modified

April 16, 2026

References (6)

cve@mitrehttp://marc.info/?l=bugtraq&m=98088315825366&w=2
cve@mitrehttp://www.securityfocus.com/bid/2305
cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/6025
af854a3a-2127-422b-91ae-364da2661108http://marc.info/?l=bugtraq&m=98088315825366&w=2
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/2305
af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/6025

Data Freshness Timeline

(refreshed 9× in last 7d / 13× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-29 13:40 UTCepss_batch
2026-05-27 13:37 UTCepss_batch
2026-05-27 13:37 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 13:41 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-26 07:16 UTCepss_batch
2026-05-22 21:15 UTCepss_batch
2026-05-21 22:38 UTCepss_batch
2026-05-20 22:36 UTCepss_batch
2026-05-18 21:29 UTCepss_batch
2026-05-18 21:29 UTCepss_batch

Publicly available exploits

(2 references)

Working exploit code is in the public domain (1 Metasploit module) (1 Exploit-DB entry). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

Exploit-DBEDB-16489✓ verified
First seen Apr 30, 2010
RealVNC 3.3.7 - Client Buffer Overflow (Metasploit)
Open source ↗
Metasploitexploit/windows/vnc/realvnc_client✓ verified
First seen Jan 29, 2001
RealVNC 3.3.7 Client Buffer Overflow
Open source ↗

Frequently asked(4)

What is CVE-2001-0167?

CVE-2001-0167 is a none vulnerability published on May 3, 2001. Buffer overflow in AT&T WinVNC (Virtual Network Computing) client 3.3.3r7 and earlier allows remote attackers to execute arbitrary commands via a long rfbConnFailed packet with a long reason string.

When was CVE-2001-0167 disclosed?

CVE-2001-0167 was first published in the National Vulnerability Database on May 3, 2001, with the most recent update on April 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2001-0167 actively exploited?

CVE-2001-0167 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 98.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

How do I remediate CVE-2001-0167?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2001-0167, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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CVE-2001-0167

📅 Published

🔄 Last Modified

🔗 References (6)