Servers and applications
CVE-2012-0353
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…
- Severity
- High 7.1
- Published
- 15 Mar 2012
- Last changed
- 16 Jun 2026
- Added to UpHeron
- 1 Nov 2026
- Exploit chance
- 2.5% in the next 30 daysHigher than 84% of CVEs. EPSS by FIRST, 12 Nov 2026
- Attack
- Over the network · No login needed
- Attacker can
- Take it down
- CVSS vector
AV:N/AC:M/Au:N/C:N/I:N/A:C- Sources
- 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.
Affected software
| Software | Affected versions |
|---|---|
Cisco ASA and Firepower Threat DefenseServers and applications · cpe:o:cisco:adaptive_security_appliance_software |
All 32 release lines
|