CVE-2026-20290 (GCVE-0-2026-20290)
Vulnerability from cvelistv5
Published
2026-09-16 20:19
Modified
2026-09-17 17:29
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-805 - Buffer Access with Incorrect Length Value
Summary
A vulnerability in SSL/TLS certificate parsing in the Snort 2 Detection Engine of Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the Snort 2 Detection Engine to restart.
This vulnerability is due to incomplete validation of the SSL certificate. An attacker could exploit this vulnerability by sending a crafted SSL connection setup request to be parsed by Snort 2. A successful exploit could allow the attacker to cause the Snort 2 Detection Engine to restart unexpectedly, resulting in a denial of service (DoS) condition.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Cisco | Cisco Secure Firewall Threat Defense (FTD) Software |
Version: 7.0.0 Version: 7.0.0.1 Version: 7.0.1 Version: 7.0.1.1 Version: 7.0.2 Version: 7.2.0 Version: 7.0.2.1 Version: 7.0.3 Version: 7.2.0.1 Version: 7.0.4 Version: 7.2.1 Version: 7.0.5 Version: 7.3.0 Version: 7.2.2 Version: 7.2.3 Version: 7.3.1 Version: 7.2.4 Version: 7.0.6 Version: 7.2.5 Version: 7.2.4.1 Version: 7.3.1.1 Version: 7.4.0 Version: 7.0.6.1 Version: 7.2.5.1 Version: 7.4.1 Version: 7.2.6 Version: 7.0.6.2 Version: 7.4.1.1 Version: 7.2.7 Version: 7.2.5.2 Version: 7.3.1.2 Version: 7.2.8 Version: 7.6.0 Version: 7.4.2 Version: 7.2.8.1 Version: 7.0.6.3 Version: 7.4.2.1 Version: 7.2.9 Version: 7.0.7 Version: 7.4.2.2 Version: 7.2.10 Version: 7.6.1 Version: 7.4.2.3 Version: 7.0.8 Version: 7.6.2 Version: 7.0.8.1 Version: 7.6.2.1 Version: 7.4.2.4 Version: 7.2.10.2 Version: 7.4.3 Version: 7.6.4 Version: 7.4.4 Version: 7.0.9 Version: 7.2.11 Version: 7.4.7 |
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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