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Vulnerability record · CVE-2012-0353 · published 15 March 2012

CVE-2012-0353: Cisco adaptive security appliance software improper input validation vulnerability

Cisco · Adaptive Security Appliance Software

The UDP inspection engine on Cisco Adaptive Security Appliances (ASA) 5500 series devices, and the ASA Services Module (ASASM) in Cisco Catalyst 6500 series devices, with software 8.0 before 8.0(5.25), 8.1 before 8.1(2.50), 8.2 before 8.2(5.5), 8.3 before 8.3(2.22), 8.4 before 8.4(2.1), and 8.5 before 8.5(1.2) does not properly handle flows, which allows remote attackers to cause a denial of service (device reload) via a crafted series of (1) IPv4 or (2) IPv6 UDP packets, aka Bug ID CSCtq10441.

7.1 CVSS 2.0 High EPSS 2.5% · top 15.6% CWE-20 · Improper input validation
7.1CVSS 2.0 base score
2.5%EPSS exploitation probability, 30 days
NoNot in CISA KEV
11Affected product versions listed by NVD
12References
16 Jun 2026Last modified by NVD

Description

The UDP inspection engine on Cisco Adaptive Security Appliances (ASA) 5500 series devices, and the ASA Services Module (ASASM) in Cisco Catalyst 6500 series devices, with software 8.0 before 8.0(5.25), 8.1 before 8.1(2.50), 8.2 before 8.2(5.5), 8.3 before 8.3(2.22), 8.4 before 8.4(2.1), and 8.5 before 8.5(1.2) does not properly handle flows, which allows remote attackers to cause a denial of service (device reload) via a crafted series of (1) IPv4 or (2) IPv6 UDP packets, aka Bug ID CSCtq10441.

AV:N/AC:M/Au:N/C:N/I:N/A:C

Affected products

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

References

LinkTags
http://osvdb.org/80043
http://secunia.com/advisories/48423
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120314-asa Vendor Advisory
http://www.securityfocus.com/bid/52484
http://www.securitytracker.com/id?1026800
https://exchange.xforce.ibmcloud.com/vulnerabilities/74029
http://osvdb.org/80043
http://secunia.com/advisories/48423
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20120314-asa Vendor Advisory
http://www.securityfocus.com/bid/52484
http://www.securitytracker.com/id?1026800
https://exchange.xforce.ibmcloud.com/vulnerabilities/74029

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Source: NIST National Vulnerability Database (record CVE-2012-0353), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.