CVE-2026-20068
published 2026-03-04CVE-2026-20068: 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…
PriorityP335medium5.8CVSS 3.1
AVNACLPRNUINSCCNINAL
EPSS
0.44%
37.2th percentile
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 incomplete error checking when parsing remote procedure call (RPC) data. An attacker could exploit this vulnerability by sending crafted RPC 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
307 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
| cisco | cisco_cyber_vision | — | — |
CVSS provenance
nvdv3.15.8MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L
vendor_cisco5.8MEDIUM
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VulDB
Cisco Cyber Vision RPC uncaught exception (cisco-sa-snort3-multi-dos-XFWkWSwz)
vuldb·2026-08-18·CVSS 5.8
CVE-2026-20068 [MEDIUM] Cisco Cyber Vision RPC uncaught exception (cisco-sa-snort3-multi-dos-XFWkWSwz)
A vulnerability has been found in Cisco Cyber Vision, Secure Firewall Threat Defense Software and UTD SNORT IPS Engine Software and classified as problematic. The affected element is an unknown function of the component RPC Handler. The manipulation leads to uncaught exception.
This vulnerability is uniquely identified as CVE-2026-20068. The attack is possible to be carried out remotely. No exploit exists.
The affected component should be upgraded.
GHSA
GHSA-6m9q-hwqp-8rv6: Multiple Cisco products are affected by a vulnerability in the Snort 3 detection engine that could allow an unauthenticated, remote attacker to cause
ghsa_unreviewed·2026-03-04
CVE-2026-20068 [MEDIUM] CWE-248 GHSA-6m9q-hwqp-8rv6: Multiple Cisco products are affected by a vulnerability in the Snort 3 detection engine that could allow an unauthenticated, remote attacker to cause
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 incomplete error checking when parsing remote procedure call (RPC) data. An attacker could exploit this vulnerability by sending crafted RPC 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.
Cisco
Multiple Cisco Products Snort 3 Denial of Service Vulnerabilities
vendor_cisco·2026-03-04·CVSS 5.8
CVE-2026-20005 [MEDIUM] CWE-248 Multiple Cisco Products Snort 3 Denial of Service Vulnerabilities
Multiple Cisco Products Snort 3 Denial of Service Vulnerabilities
Multiple Cisco products are affected by vulnerabilities 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.
For more information about these vulnerabilities, see the Details section of this advisory.
Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.
This advisory is available at the following link:https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort3-multi-dos-XFWkWSwz
This advisory is part of the March 2026 release of the Cisco Secure Firewall ASA, Secure FMC, and Secure
Cisco
Multiple Cisco Products Snort 3 Denial of Service Vulnerabilities
vendor_cisco·CVSS 3.1
CVE-2026-20068 Multiple Cisco Products Snort 3 Denial of Service Vulnerabilities
CVE-2026-20068: Multiple Cisco Products Snort 3 Denial of Service Vulnerabilities
Multiple Cisco products are affected by vulnerabilities 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. For more information about these vulnerabilities, see the
CVSS: 3.1
CWE: CWE-248, CWE-392, CWE-400, CWE-248, CWE-392, CWE-400, CWE-667, CWE-787, CWE-248, CWE-392, CWE-400, CWE-248, CWE-392, CWE-400, CWE-667, CWE-787
Bug IDs: CSCwn49805, CSCwn65473, CSCwo93207, CSCwn49805, CSCwn65473
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-03-04
Published