How severe is CVE-2001-0167?

CVE-2001-0167 has a CVSS 2.0 base score of 7.6, rated high severity.

Is CVE-2001-0167 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 51% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2001-0167?

CVE-2001-0167 affects Att Winvnc. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2001-0167?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2001-0167 published?

CVE-2001-0167 was published on 2001-05-03 and last updated on 2026-06-16.

CVE-2001-0167

CVE-2001-0167 is a high-severity vulnerability in Att Winvnc with a CVSS 2.0 base score of 7.6. Its EPSS exploit-prediction score of 51% places it in the 99th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: High (CVSS 2.0 base score 7.6)
EPSS exploit prediction: 51% (99th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Att Winvnc
Published: 2001-05-03
Last modified: 2026-06-16

Description

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.

Frequently asked questions

What is CVE-2001-0167?: 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.
How severe is CVE-2001-0167?: CVE-2001-0167 has a CVSS 2.0 base score of 7.6, rated high severity.
Is CVE-2001-0167 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 51% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2001-0167?: CVE-2001-0167 affects Att Winvnc. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2001-0167?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2001-0167 published?: CVE-2001-0167 was published on 2001-05-03 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:att:winvnc:*:*:*:*:*:*:*:*

More vulnerabilities in Att Winvnc

CVE-2001-0168 — Critical (CVSS 10.0): Buffer overflow in AT&T WinVNC (Virtual Network Computing) server 3.3.3r7 and earlier allows remote attackers to…
CVE-2000-1164 — Critical (CVSS 9.0): WinVNC installs the WinVNC3 registry key with permissions that give Special Access (read and modify) to the Everybody…
CVE-2001-1422 — High (CVSS 7.5): WinVNC 3.3.3 and earlier generates the same challenge string for multiple connections, which allows remote attackers to…

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