CVE-2025-20360: Multiple Cisco Products Snort 3 MIME Denial of Service Vulnerability
Cisco · Cisco Cyber Vision
Affected: Cisco Cyber Vision · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 32% of scored CVEs
DescriptionCVE.org
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.
Affected products2
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Cisco · Cisco Cyber Vision3.0.0; 3.0.2; 3.0.3; 3.0.1; 3.1.0; 3.0.4 and 45 more
- Cisco · Cisco Secure Firewall Threat Defense (FTD) Software7.3.0; 7.3.1; 7.3.1.1; 7.4.0; 7.4.1; 7.4.1.1 and 9 more
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Cisco
- Published
- October 2025
CoverageNo articles yet
No CyberSIXT article names CVE-2025-20360 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.