7.8
CVSSv2

CVE-2021-40117

Published: 27/10/2021 Updated: 07/11/2023
CVSS v2 Base Score: 7.8 | Impact Score: 6.9 | Exploitability Score: 10
CVSS v3 Base Score: 7.5 | Impact Score: 3.6 | Exploitability Score: 3.9
VMScore: 694
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Vulnerability Summary

A vulnerability in SSL/TLS message handler for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote malicious user to cause a denial of service (DoS) condition on an affected device. This vulnerability exists because incoming SSL/TLS packets are not properly processed. An attacker could exploit this vulnerability by sending a crafted SSL/TLS packet to an affected device. A successful exploit could allow the malicious user to cause the affected device to reload, resulting in a DoS condition.

Vulnerability Trend

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cisco firepower threat defense

cisco adaptive security appliance

cisco adaptive security appliance software

cisco asa_5512-x_firmware 009.009\\(002.085\\)

cisco asa_5512-x_firmware 009.014\\(002.106\\)

cisco asa_5505_firmware 009.009\\(002.085\\)

cisco asa_5505_firmware 009.014\\(002.106\\)

cisco asa_5515-x_firmware 009.009\\(002.085\\)

cisco asa_5515-x_firmware 009.014\\(002.106\\)

cisco asa_5525-x_firmware 009.009\\(002.085\\)

cisco asa_5525-x_firmware 009.014\\(002.106\\)

cisco asa_5545-x_firmware 009.009\\(002.085\\)

cisco asa_5545-x_firmware 009.014\\(002.106\\)

cisco asa_5555-x_firmware 009.009\\(002.085\\)

cisco asa_5555-x_firmware 009.014\\(002.106\\)

cisco asa_5580_firmware 009.009\\(002.085\\)

cisco asa_5580_firmware 009.014\\(002.106\\)

cisco asa_5585-x_firmware 009.009\\(002.085\\)

cisco asa_5585-x_firmware 009.014\\(002.106\\)

Vendor Advisories

A vulnerability in SSL/TLS message handler for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device This vulnerability exists because incoming SSL/TLS packets are not properly processed A ...