CVE-2020-3555 describes a denial-of-service vulnerability in Cisco Adaptive Security Appliance (ASA) Software and Firepower Threat Defense (FTD) Software. An unauthenticated, remote attacker can exploit a flaw in the SIP inspection process by sending a high rate of crafted SIP traffic, leading to a watchdog timeout and device reload. This vulnerability carries a CVSS score of 7.5 (High), indicating a network-based attack with low complexity and high impact on availability. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 9.6.4.43CPE matchmatch criteria | cpe:2.3:a:cisco:adaptive_security_appliance:*:*:*:*:*:*:*:* | ||
<= 6.2.2CPE matchmatch criteria | cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* | ||
>= 6.3.0, < 6.3.0.6CPE matchmatch criteria | cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* | ||
>= 6.4.0, < 6.4.0.10CPE matchmatch criteria | cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* | ||
>= 6.5.0, < 6.5.0.5CPE matchmatch criteria | cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
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