CVE-2025-20360
Published: Oct 15, 2025
Modified: Feb 12, 2026
CVSS v3.1
5.8
Description
Multiple Cisco products are affected by a vulnerability in the Snort 3 HTTP Decoder that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart. This vulnerability is due to a lack of complete error checking when the MIME fields of the HTTP header are parsed. An attacker could exploit this vulnerability by sending crafted HTTP packets through an established connection to be parsed by Snort 3. A successful exploit could allow the attacker to cause a DoS condition when the Snort 3 Detection Engine unexpectedly restarts.
| Vendor | Product | Versions |
|---|---|---|
Cisco | Cisco Cyber Vision | affected 3.0.0affected 3.0.2affected 3.0.3affected 3.0.1affected 3.1.0+46 more versions |
Cisco | Cisco Secure Firewall Threat Defense (FTD) Software | affected 7.3.0affected 7.3.1affected 7.3.1.1affected 7.4.0affected 7.4.1+10 more versions |
Weaknesses (CWE)
CVSS v3.1 Details
CVSS v3.1 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
References
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