5.8
CVE-2026-20066
- EPSS 0.48%
- Veröffentlicht 04.03.2026 17:49:00
- Zuletzt bearbeitet 19.08.2026 20:33:09
- CVE-Watchlists
- Unerledigt
LoginMultiple Cisco Products Snort 3 TBD Denial of Service Vulnerability
Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine that could allow an unauthenticated, remote attacker to cause the Snort 3 Detection Engine to restart, resulting in an interruption of packet inspection. This vulnerability is due to an error in the JSTokenizer normalization logic when the HTTP inspection normalizes JavaScript. An attacker could exploit this vulnerability by sending crafted HTTP packets through an established connection that is parsed by Snort 3. A successful exploit could allow the attacker to cause a DoS condition when the Snort 3 Detection Engine restarts unexpectedly. JSTokenizer is not enabled by default.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Cisco ≫ Secure Firewall Threat Defense Version7.4.0
Cisco ≫ Secure Firewall Threat Defense Version7.4.1
Cisco ≫ Secure Firewall Threat Defense Version7.4.1.1
Cisco ≫ Secure Firewall Threat Defense Version7.4.2
Cisco ≫ Secure Firewall Threat Defense Version7.4.2.1
Cisco ≫ Secure Firewall Threat Defense Version7.4.2.2
Cisco ≫ Secure Firewall Threat Defense Version7.4.2.3
Cisco ≫ Secure Firewall Threat Defense Version7.4.2.4
Cisco ≫ Secure Firewall Threat Defense Version7.4.3
Cisco ≫ Secure Firewall Threat Defense Version7.6.0
Cisco ≫ Secure Firewall Threat Defense Version7.6.1
Cisco ≫ Secure Firewall Threat Defense Version7.6.2
Cisco ≫ Secure Firewall Threat Defense Version7.6.2.1
Cisco ≫ Secure Firewall Threat Defense Version7.7.0
Cisco ≫ Secure Firewall Threat Defense Version7.7.10
Cisco ≫ Secure Firewall Threat Defense Version7.7.10.1
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.2.1r
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.3.1a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.3.2
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.3.3
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.3.4
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.3.4a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.3.5
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.3.6
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.3.7
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.3.8
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.3.8a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.4.1a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.4.1b
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.4.2
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.5.1
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.5.1a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.6.1a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.6.2
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.6.3
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.6.3a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.6.4
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.6.5
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.6.6
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.6.6a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.6.7
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.6.8
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.6.8a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.7.1a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.7.2
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.8.1a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.9.1a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.9.2a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.9.3a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.9.4
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.9.4a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.9.5a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.9.5e
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.9.5f
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.9.6
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.9.7a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.9.7b
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.9.8
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.10.1a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.11.1a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.12.1a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.12.2
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.12.3
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.12.3a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.12.4
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.12.4a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.12.4b
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.12.5
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.12.5a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.12.5b
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.12.5c
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.12.5d
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.12.6
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.13.1a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.14.1a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.15.1a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.15.2a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.15.2c
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.15.3
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.15.3a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.15.4
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.15.4c
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.16.1a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.17.1
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.18.1
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.18.1a
Cisco ≫ Unified Threat Defense Snort Intrusion Prevention System Engine Version17.18.2
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 0.48% | 0.372 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| Cisco PSIRT | 5.8 | 3.9 | 1.4 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
|
CWE-400 Uncontrolled Resource Consumption
The product does not properly control the allocation and maintenance of a limited resource.
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort3-multi-dos-XFWkWSwz