Vulnerability in Cisco Cyber Vision
CVE-2025-20360
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.004 (30.7th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Cisco Cyber Vision — versions 3.0.0, 3.0.2, 3.0.3
- Cisco Secure Firewall Threat Defense (Ftd) Software — versions 7.3.0, 7.3.1, 7.3.1.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2025-20360?
- CVE-2025-20360 is a medium-severity vulnerability in Cisco Cyber Vision, classified under Buffer Access with Incorrect Length Value. CVSS score: 5.8/10. Published 2025-10-15.
- How severe is CVE-2025-20360?
- Medium severity. CVSS v3 base score is 5.8 out of 10.
- Is CVE-2025-20360 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.