CVE-2026-20005Disclosure(cisco / cyber_vision)

LOWCVSS 5.8 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

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 parsing of the SSL handshake ingress packets. An attacker could exploit this vulnerability by sending crafted SSL handshake packets. A successful exploit could allow the attacker to cause a denial of service (DoS) condition when the Snort 3 Detection Engine restarts unexpectedly.

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0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snort3-multi-dos-XFWkWSwz

Weakness type (CWE)

CWE-392

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

cyber_vision
meraki_mx100
meraki_mx105
meraki_mx250

Threat summary

1 mentions across 1 observed day

What's happening

Technical details provided in 1 signal
Disclosure: 1 classified signal
1 total mentions across 1 day

Affected systems

Vendors

cisco

Products

cyber_visionmeraki_mx100meraki_mx105meraki_mx250meraki_mx400meraki_mx450meraki_mx600meraki_mx64meraki_mx64wmeraki_mx65

90 versions affected across 23 products

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Disclosure

1100.0%

Referenced assets1 URL

By indicator

https://www.cve.org/CVERecord?id=CVE-2026-20005

Full discourse1 post

CVE@CVEnew217d
Disclosure
CVE-2026-20005 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 Dete… https://www.cve.org/CVERecord?id=CVE-2026-20005
Post summary
This is a CVE disclosure about a vulnerability in Cisco's Snort 3 Detection Engine that could allow unauthenticated remote attackers to cause disruptions; no PoC, exploit code, or patch details are provided.
00000134
56.6K followersView on X

CPE platform detail109 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

109 of 109 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	cisco	cyber_vision	3.0.0	-	-
App	cisco	cyber_vision	3.0.1	-	-
App	cisco	cyber_vision	3.0.2	-	-
App	cisco	cyber_vision	3.0.3	-	-
App	cisco	cyber_vision	3.0.4	-	-
App	cisco	cyber_vision	3.0.5	-	-
App	cisco	cyber_vision	3.0.6	-	-
App	cisco	cyber_vision	3.1.0	-	-
App	cisco	cyber_vision	3.1.1	-	-
App	cisco	cyber_vision	3.1.2	-	-
App	cisco	cyber_vision	3.2.0	-	-
App	cisco	cyber_vision	3.2.1	-	-
App	cisco	cyber_vision	3.2.2	-	-
App	cisco	cyber_vision	3.2.3	-	-
App	cisco	cyber_vision	3.2.4	-	-
App	cisco	cyber_vision	4.0.0	-	-
App	cisco	cyber_vision	4.0.1	-	-
App	cisco	cyber_vision	4.0.2	-	-
App	cisco	cyber_vision	4.0.3	-	-
App	cisco	cyber_vision	4.1.0	-	-
App	cisco	cyber_vision	4.1.1	-	-
App	cisco	cyber_vision	4.1.2	-	-
App	cisco	cyber_vision	4.1.3	-	-
App	cisco	cyber_vision	4.1.4	-	-
App	cisco	cyber_vision	4.1.5	-	-
App	cisco	cyber_vision	4.1.6	-	-
App	cisco	cyber_vision	4.1.7	-	-
App	cisco	cyber_vision	4.2.0	-	-
App	cisco	cyber_vision	4.2.1	-	-
App	cisco	cyber_vision	4.2.2	-	-
App	cisco	cyber_vision	4.2.3	-	-
App	cisco	cyber_vision	4.2.4	-	-
App	cisco	cyber_vision	4.2.6	-	-
App	cisco	cyber_vision	4.3.0	-	-
App	cisco	cyber_vision	4.3.1	-	-
App	cisco	cyber_vision	4.3.2	-	-
App	cisco	cyber_vision	4.3.3	-	-
App	cisco	cyber_vision	4.4.0	-	-
App	cisco	cyber_vision	4.4.1	-	-
App	cisco	cyber_vision	4.4.2	-	-
App	cisco	cyber_vision	4.4.3	-	-
App	cisco	cyber_vision	5.0.0	-	-
App	cisco	cyber_vision	5.0.1	-	-
App	cisco	cyber_vision	5.0.2	-	-
App	cisco	cyber_vision	5.1.0	-	-
App	cisco	cyber_vision	5.1.1	-	-
App	cisco	cyber_vision	5.1.2	-	-
App	cisco	cyber_vision	5.1.3	-	-
App	cisco	cyber_vision	5.2.0	-	-
App	cisco	cyber_vision	5.2.1	-	-
App	cisco	cyber_vision	5.3.0	-	-
App	cisco	cyber_vision	5.3.1	-	-
App	cisco	cyber_vision	5.3.2	-	-
HW	cisco	meraki_mx100	-	-	-
HW	cisco	meraki_mx105	-	-	-
HW	cisco	meraki_mx250	-	-	-
HW	cisco	meraki_mx400	-	-	-
HW	cisco	meraki_mx450	-	-	-
HW	cisco	meraki_mx600	-	-	-
HW	cisco	meraki_mx64	-	-	-
HW	cisco	meraki_mx64w	-	-	-
HW	cisco	meraki_mx65	-	-	-
HW	cisco	meraki_mx65w	-	-	-
HW	cisco	meraki_mx67	-	-	-
HW	cisco	meraki_mx67c	-	-	-
HW	cisco	meraki_mx67w	-	-	-
HW	cisco	meraki_mx68	-	-	-
HW	cisco	meraki_mx68cw	-	-	-
HW	cisco	meraki_mx75	-	-	-
HW	cisco	meraki_mx84	-	-	-
HW	cisco	meraki_mx85	-	-	-
HW	cisco	meraki_mx95	-	-	-
App	cisco	secure_firewall_threat_defense	7.6.0	-	-
App	cisco	secure_firewall_threat_defense	7.6.1	-	-
App	cisco	secure_firewall_threat_defense	7.6.2	-	-
App	cisco	secure_firewall_threat_defense	7.6.2.1	-	-
App	cisco	secure_firewall_threat_defense	7.7.0	-	-
App	cisco	secure_firewall_threat_defense	7.7.10	-	-
App	cisco	secure_firewall_threat_defense	7.7.10.1	-	-
App	cisco	snort	-	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.12.1a	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.12.2	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.12.3	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.12.3a	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.12.4	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.12.4a	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.12.4b	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.12.5	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.12.5a	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.12.5b	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.12.5c	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.12.5d	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.12.6	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.13.1a	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.14.1a	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.15.1a	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.15.2a	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.15.2c	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.15.3	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.15.3a	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.15.4	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.15.4c	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.16.1a	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.17.1	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.18.1	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.18.1a	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.18.2	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.9.4	-	-
OS	cisco	unified_threat_defense_snort_intrusion_prevention_system_engine	17.9.5e	-	-

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