CVEvulnerability
CVE-2020-3517
8.6 HIGH
Official page ↗
- Status
- Undergoing Analysis
- Published
- 2020-08-27
- Last modified
- 2026-06-17
- 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 3.0 ([email protected])
- 8.6 HIGH — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/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-476
Description
A vulnerability in the Cisco Fabric Services component of Cisco FXOS Software and Cisco NX-OS Software could allow an unauthenticated attacker to cause process crashes, which could result in a denial of service (DoS) condition on an affected device. The attack vector is configuration dependent and could be remote or adjacent. For more information about the attack vector, see the Details section of this advisory. The vulnerability is due to insufficient error handling when the affected software parses Cisco Fabric Services messages. An attacker could exploit this vulnerability by sending malicious Cisco Fabric Services messages to an affected device. A successful exploit could allow the attacker to cause a reload of an affected device, which could result in a DoS condition.
Affected configurations
• cisco firepower extensible operating system (>= 1.1 < 1.1.4.179)
• cisco firepower extensible operating system (>= 2.0 < 2.0.1.153)
• cisco firepower extensible operating system (>= 2.1 < 2.1.1.86)
• cisco firepower extensible operating system (>= 2.2 < 2.2.1.70)
• cisco nx-os 6.0\(2\)a3\(1\)
• cisco nx-os 6.0\(2\)a3\(2\)
• cisco nx-os 6.0\(2\)a3\(4\)
• cisco nx-os 6.0\(2\)a4\(1\)
• cisco nx-os 6.0\(2\)a4\(2\)
• cisco nx-os 6.0\(2\)a4\(3\)
• cisco nx-os 6.0\(2\)a4\(4\)
• cisco nx-os 6.0\(2\)a4\(5\)
• cisco nx-os 6.0\(2\)a4\(6\)
• cisco nx-os 6.0\(2\)a6\(1\)
• cisco nx-os 6.0\(2\)a6\(1a\)
• cisco nx-os 6.0\(2\)a6\(2\)
• cisco nx-os 6.0\(2\)a6\(2a\)
• cisco nx-os 6.0\(2\)a6\(3\)
• cisco nx-os 6.0\(2\)a6\(3a\)
• cisco nx-os 6.0\(2\)a6\(4\)
• cisco nx-os 6.0\(2\)a6\(4a\)
• cisco nx-os 6.0\(2\)a6\(5\)
• cisco nx-os 6.0\(2\)a6\(5a\)
• cisco nx-os 6.0\(2\)a6\(5b\)
• cisco nx-os 6.0\(2\)a6\(6\)
• cisco nx-os 6.0\(2\)a6\(7\)
• cisco nx-os 6.0\(2\)a6\(8\)
• cisco nx-os 6.0\(2\)a7\(1\)
• cisco nx-os 6.0\(2\)a7\(1a\)
• cisco nx-os 6.0\(2\)a7\(2\)
• cisco nx-os 6.0\(2\)a7\(2a\)
• cisco nx-os 6.0\(2\)a8
• cisco nx-os 6.0\(2\)a8\(1\)
• cisco nx-os 6.0\(2\)a8\(2\)
• cisco nx-os 6.0\(2\)a8\(3\)
• cisco nx-os 6.0\(2\)a8\(4\)
• cisco nx-os 6.0\(2\)a8\(4a\)
• cisco nx-os 6.0\(2\)a8\(5\)
• cisco nx-os 6.0\(2\)a8\(6\)
• cisco nx-os 6.0\(2\)a8\(6.213\)
• cisco nx-os 6.0\(2\)a8\(7\)
• cisco nx-os 6.0\(2\)a8\(7a\)
• cisco nx-os 6.0\(2\)a8\(7b\)
• cisco nx-os 6.0\(2\)a8\(8\)
• cisco nx-os 6.0\(2\)a8\(9\)
• cisco nx-os 6.0\(2\)a8\(9.7\)
• cisco nx-os 6.0\(2\)a8\(10\)
• cisco nx-os 6.0\(2\)a8\(10a\)
• cisco nx-os 6.0\(2\)a8\(11\)
• cisco nx-os 6.0\(2\)a8\(11a\)
• cisco nx-os 6.0\(2\)a8\(11b\)
• cisco nx-os 6.0\(2\)u2\(1\)
• cisco nx-os 6.0\(2\)u2\(2\)
• cisco nx-os 6.0\(2\)u2\(3\)
• cisco nx-os 6.0\(2\)u2\(4\)
• cisco nx-os 6.0\(2\)u2\(5\)
• cisco nx-os 6.0\(2\)u2\(6\)
• cisco nx-os 6.0\(2\)u3\(1\)
• cisco nx-os 6.0\(2\)u3\(2\)
• cisco nx-os 6.0\(2\)u3\(3\)
… and 230 more
Related
Weakness · CWE (1)
- CWE-476 NULL Pointer Dereference weakness