Read the docs
TI-2022-05502 Aliases CVE-2022-20943GHSA-wfgx-7r85-fvqv

Multiple vulnerabilities in the Server Message Block Version 2 (SMB2) processor of the…

Priority LOW 28CWE-244Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · None · Low
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

Multiple vulnerabilities in the Server Message Block Version 2 (SMB2) processor of the Snort detection engine on multiple Cisco products could allow an unauthenticated, remote attacker to bypass the configured policies or cause a denial of service (DoS) condition on an affected device. These vulnerabilities are due to improper management of system resources when the Snort detection engine is processing SMB2 traffic. An attacker could exploit these vulnerabilities by sending a high rate of certain types of SMB2 packets through an affected device. A successful exploit could allow the attacker to trigger a reload of the Snort process, resulting in a DoS condition. Note: When the snort preserve-connection option is enabled for the Snort detection engine, a successful exploit could also allow the attacker to bypass the configured policies and deliver a malicious payload to the protected network. The snort preserve-connection setting is enabled by default. See the Details ["#details"] section of this advisory for more information. Note: Only products that have Snort 3 configured are affected. Products that are configured with Snort 2 are not affected.

Why it matters now

EPSS 0.01068 65th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Firepower Threat Defense Software7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1—No fix listedCNA
CiscoCisco Cyber Vision3.0.4; 3.0.0; 3.0.1; 3.0.2; 3.0.3; 3.0.5; 3.0.6; 3.1.0; 3.1.2; 3.1.1; 3.2.3; 3.2.1; 3.2.4; 3.2.0; 3.2.2; 4.0.0; 4.0.1; 4.0.2; 4.0.3; 4.1.0; 4.1.1—No fix listedCNA
  • Cisco Firepower Threat Defense Software VendorCisco Affected 7.0.0; 7.0.0.1; 7.0.1; 7.0.1.1 Fixed in — No fix listed CNA
  • Cisco Cyber Vision VendorCisco Affected 3.0.4; 3.0.0; 3.0.1; 3.0.2; 3.0.3; 3.0.5; 3.0.6; 3.1.0; 3.1.2; 3.1.1; 3.2.3; 3.2.1; 3.2.4; 3.2.0; 3.2.2; 4.0.0; 4.0.1; 4.0.2; 4.0.3; 4.1.0; 4.1.1 Fixed in — No fix listed CNA

CPE configurations NVD · 25

CPEVersionsRoleVendor
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.0:*:*:*:*:*:*:*7.0.0VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.0.1:*:*:*:*:*:*:*7.0.0.1VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.1:*:*:*:*:*:*:*7.0.1VulnerableCisco
cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.1.1:*:*:*:*:*:*:*7.0.1.1VulnerableCisco
cpe:2.3:a:cisco:cyber_vision:3.0.0:*:*:*:*:*:*:*3.0.0VulnerableCisco
cpe:2.3:a:cisco:cyber_vision:3.0.1:*:*:*:*:*:*:*3.0.1VulnerableCisco
cpe:2.3:a:cisco:cyber_vision:3.0.2:*:*:*:*:*:*:*3.0.2VulnerableCisco
cpe:2.3:a:cisco:cyber_vision:3.0.3:*:*:*:*:*:*:*3.0.3VulnerableCisco
cpe:2.3:a:cisco:cyber_vision:3.0.5:*:*:*:*:*:*:*3.0.5VulnerableCisco
cpe:2.3:a:cisco:cyber_vision:3.0.6:*:*:*:*:*:*:*3.0.6VulnerableCisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.0:*:*:*:*:*:*:* Versions 7.0.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.0.1:*:*:*:*:*:*:* Versions 7.0.0.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.1:*:*:*:*:*:*:* Versions 7.0.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:7.0.1.1:*:*:*:*:*:*:* Versions 7.0.1.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:cyber_vision:3.0.0:*:*:*:*:*:*:* Versions 3.0.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:cyber_vision:3.0.1:*:*:*:*:*:*:* Versions 3.0.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:cyber_vision:3.0.2:*:*:*:*:*:*:* Versions 3.0.2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:cyber_vision:3.0.3:*:*:*:*:*:*:* Versions 3.0.3 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:cyber_vision:3.0.5:*:*:*:*:*:*:* Versions 3.0.5 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:cyber_vision:3.0.6:*:*:*:*:*:*:* Versions 3.0.6 Vulnerable ·Cisco
Show 15 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:cisco:cyber_vision:3.1.0:*:*:*:*:*:*:*3.1.0VulnerableCisco
cpe:2.3:a:cisco:cyber_vision:3.1.1:*:*:*:*:*:*:*3.1.1VulnerableCisco
cpe:2.3:a:cisco:cyber_vision:3.1.2:*:*:*:*:*:*:*3.1.2VulnerableCisco
cpe:2.3:a:cisco:cyber_vision:3.2.0:*:*:*:*:*:*:*3.2.0VulnerableCisco
cpe:2.3:a:cisco:cyber_vision:3.2.1:*:*:*:*:*:*:*3.2.1VulnerableCisco
cpe:2.3:a:cisco:cyber_vision:3.2.2:*:*:*:*:*:*:*3.2.2VulnerableCisco
cpe:2.3:a:cisco:cyber_vision:3.2.3:*:*:*:*:*:*:*3.2.3VulnerableCisco
cpe:2.3:a:cisco:cyber_vision:3.2.4:*:*:*:*:*:*:*3.2.4VulnerableCisco
cpe:2.3:a:cisco:cyber_vision:4.0.0:*:*:*:*:*:*:*4.0.0VulnerableCisco
cpe:2.3:a:cisco:cyber_vision:4.0.1:*:*:*:*:*:*:*4.0.1VulnerableCisco
cpe:2.3:a:cisco:cyber_vision:4.0.2:*:*:*:*:*:*:*4.0.2VulnerableCisco
cpe:2.3:a:cisco:cyber_vision:4.0.3:*:*:*:*:*:*:*4.0.3VulnerableCisco
cpe:2.3:a:cisco:cyber_vision:4.1.0:*:*:*:*:*:*:*4.1.0VulnerableCisco
cpe:2.3:a:cisco:cyber_vision:4.1.1:*:*:*:*:*:*:*4.1.1VulnerableCisco
cpe:2.3:o:cisco:meraki_mx_security_appliance_firmware:*:*:*:*:*:*:*:*before 16.6.7; 17.0 to before 17.11.1; 18.0 to before 18.1.3VulnerableCisco
  • cpe:2.3:a:cisco:cyber_vision:3.1.0:*:*:*:*:*:*:* Versions 3.1.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:cyber_vision:3.1.1:*:*:*:*:*:*:* Versions 3.1.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:cyber_vision:3.1.2:*:*:*:*:*:*:* Versions 3.1.2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:cyber_vision:3.2.0:*:*:*:*:*:*:* Versions 3.2.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:cyber_vision:3.2.1:*:*:*:*:*:*:* Versions 3.2.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:cyber_vision:3.2.2:*:*:*:*:*:*:* Versions 3.2.2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:cyber_vision:3.2.3:*:*:*:*:*:*:* Versions 3.2.3 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:cyber_vision:3.2.4:*:*:*:*:*:*:* Versions 3.2.4 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:cyber_vision:4.0.0:*:*:*:*:*:*:* Versions 4.0.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:cyber_vision:4.0.1:*:*:*:*:*:*:* Versions 4.0.1 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:cyber_vision:4.0.2:*:*:*:*:*:*:* Versions 4.0.2 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:cyber_vision:4.0.3:*:*:*:*:*:*:* Versions 4.0.3 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:cyber_vision:4.1.0:*:*:*:*:*:*:* Versions 4.1.0 Vulnerable ·Cisco
  • cpe:2.3:a:cisco:cyber_vision:4.1.1:*:*:*:*:*:*:* Versions 4.1.1 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:meraki_mx_security_appliance_firmware:*:*:*:*:*:*:*:* Versions before 16.6.7; 17.0 to before 17.11.1; 18.0 to before 18.1.3 Vulnerable ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-20943
  2. 2026-10-03 Alias added: GHSA-wfgx-7r85-fvqv

References

Other 1

  • TI-2021-19919 Apache Log4j2 JNDI features do not protect against attacker controlled LDAP and other JNDI related endpoints KEVCVSS 3.1CRITICAL 10.0
  • TI-2022-05244 Multiple Cisco Products Snort Modbus Denial of Service Vulnerability CVSS 3.1HIGH 7.5
  • TI-2026-16281 Multiple Cisco Products Snort 3 TBD Denial of Service Vulnerability CVSS 3.1MEDIUM 5.8
  • TI-2026-16271 Cisco Secure Firewall Threat Defense Software Snort 3 Visual Basic for Application Denial of Service Vulnerability CVSS 3.1MEDIUM 5.8
  • TI-2026-16268 Infinite loop in Cisco Cyber Vision CVSS 3.1MEDIUM 5.8
  • TI-2026-16224 Multiple Cisco products are affected by a vulnerability in the Snort 3 Detection Engine… CVSS 3.1MEDIUM 5.8
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences