CVEvulnerability
CVE-2021-1501
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2021-04-29
- Last modified
- 2026-08-11
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 8.6 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 7.8 HIGH — AV:N/AC:L/Au:N/C:N/I:N/A:C
- Weaknesses
- CWE-613
Description
A vulnerability in the SIP inspection engine of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a crash and reload of an affected device, resulting in a denial of service (DoS) condition.The vulnerability is due to a crash that occurs during a hash lookup for a SIP pinhole connection. An attacker could exploit this vulnerability by sending crafted SIP traffic through an affected device. A successful exploit could allow the attacker to cause a crash and reload of the affected device.
Affected configurations
• cisco secure firewall threat defense (>= 6.2.2 < 6.4.0.12)
• cisco secure firewall threat defense (>= 6.5.0 < 6.6.4)
• cisco secure firewall threat defense (>= 6.7.0 < 6.7.0.2)
• cisco adaptive security appliance software (>= 9.8 < 9.8.4.34)
• cisco adaptive security appliance software (>= 9.9 < 9.9.2.85)
• cisco adaptive security appliance software (>= 9.10 < 9.12.4.18)
• cisco adaptive security appliance software (>= 9.13 < 9.13.1.21)
• cisco adaptive security appliance software (>= 9.14 < 9.14.2.13)
• cisco adaptive security appliance software (>= 9.15 < 9.15.1.15)