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Vulnerability record · CVE-2006-4194 · published 17 August 2006

CVE-2006-4194: Cisco pix firewall 501 vulnerability

Cisco · Pix Firewall 501

Unspecified vulnerability in Cisco PIX 500 Series Security Appliances allows remote attackers to send arbitrary UDP packets to intranet devices via unspecified vectors involving Session Initiation Protocol (SIP) fixup commands, a different issue than CVE-2006-4032. NOTE: the vendor, after working with the researcher, has been unable to reproduce the issue

5.0 CVSS 2.0 Medium EPSS 2.3% · top 17.7%
5.0CVSS 2.0 base score
2.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
8Affected product versions listed by NVD
12References
16 Jun 2026Last modified by NVD

Description

Unspecified vulnerability in Cisco PIX 500 Series Security Appliances allows remote attackers to send arbitrary UDP packets to intranet devices via unspecified vectors involving Session Initiation Protocol (SIP) fixup commands, a different issue than CVE-2006-4032. NOTE: the vendor, after working with the researcher, has been unable to reproduce the issue

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

Affected products

8 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://searchsecurity.techtarget.com/originalContent/0%2C289142%2Csid14_gci1207450%2C00.html
http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/tsd_products_security_response09186a008070d33b.html
http://www.idoel.smilejogja.com/2006/08/14/blinded-by-the-glare-of-facial-piercings-at-black-hat-or-the-one-that-got-awa
http://www.networkworld.com/news/2006/080406-black-hat-unpatched-flaw-revealed.html?t5
http://www.osvdb.org/29781
http://www.securityfocus.com/bid/19536
http://searchsecurity.techtarget.com/originalContent/0%2C289142%2Csid14_gci1207450%2C00.html
http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/tsd_products_security_response09186a008070d33b.html
http://www.idoel.smilejogja.com/2006/08/14/blinded-by-the-glare-of-facial-piercings-at-black-hat-or-the-one-that-got-awa
http://www.networkworld.com/news/2006/080406-black-hat-unpatched-flaw-revealed.html?t5
http://www.osvdb.org/29781
http://www.securityfocus.com/bid/19536

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.8CVE-2011-0395Cisco adaptive security appliance vulnerabilityCisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.0 before 8.0(5.20), 8.1 before 8.1(2.48), 8.2 before 8.2(3), and 8.3 bef…EPSS 2.6%7.8CVE-2011-0396Cisco adaptive security appliance permissions and access controls vulnerabilityCisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.0 before 8.0(5.23), 8.1 before 8.1(2.49), 8.2 before 8.2(4.1), and 8.3 b…EPSS 1.4%7.8CVE-2010-2814Cisco adaptive security appliance vulnerabilityUnspecified vulnerability in the Transport Layer Security (TLS) implementation on Cisco Adaptive Security Appliances (ASA) 5500 series devices with s…EPSS 2.5%7.8CVE-2010-2815Cisco adaptive security appliance vulnerabilityUnspecified vulnerability in the Transport Layer Security (TLS) implementation on Cisco Adaptive Security Appliances (ASA) 5500 series devices with s…EPSS 2.5%7.8CVE-2010-2816Cisco adaptive security appliance vulnerabilityUnspecified vulnerability in the SIP inspection feature on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.0 before 8.0(…EPSS 2.5%7.8CVE-2010-2817Cisco adaptive security appliance vulnerabilityUnspecified vulnerability in the IKE implementation on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 7.0 before 7.0(8.11…EPSS 2.5%7.5CVE-2005-4499Cisco vpn 3001 concentrator vulnerabilityThe Downloadable RADIUS ACLs feature in Cisco PIX and VPN 3000 concentrators, when creating an ACL on the Cisco Secure Access Control Server (CS ACS)…EPSS 2.6%6.8CVE-2006-4312Cisco pix firewall 501 vulnerabilityCisco PIX 500 Series Security Appliances and ASA 5500 Series Adaptive Security Appliances, when running 7.0(x) up to 7.0(5) and 7.1(x) up to 7.1(2.4)…EPSS 0.32%

Source: NIST National Vulnerability Database (record CVE-2006-4194), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.