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TI-2021-13792 Aliases CVE-2021-34794GHSA-24fh-2pfj-hp74

Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SNMP Access Control Vulnerability

Priority LOW 32CWE-284Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-284.

Summary

A vulnerability in the Simple Network Management Protocol version 3 (SNMPv3) access control functionality of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to query SNMP data. This vulnerability is due to ineffective access control. An attacker could exploit this vulnerability by sending an SNMPv3 query to an affected device from a host that is not permitted by the SNMPv3 access control list. A successful exploit could allow the attacker to send an SNMP query to an affected device and retrieve information from the device. The attacker would need valid credentials to perform the SNMP query.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00944 61st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
CiscoCisco Adaptive Security Appliance (ASA) Softwareall versions—No fix listedCNA
  • Cisco Adaptive Security Appliance (ASA) Software VendorCisco Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 34

CPEVersionsRoleVendor
cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:*6.4.0 to before 6.4.0.13; 6.5.0 to before 6.6.5; 6.7.0 to before 6.7.0.1VulnerableCisco
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*9.14.0 to before 9.14.2.4; 9.15.0 to before 9.15.1.7VulnerableCisco
cpe:2.3:o:cisco:asa_5512-x_firmware:009.014\(001\):*:*:*:*:*:*:*009.014(001)VulnerableCisco
cpe:2.3:o:cisco:asa_5512-x_firmware:099.015\(001.033\):*:*:*:*:*:*:*099.015(001.033)VulnerableCisco
cpe:2.3:o:cisco:asa_5512-x_firmware:099.016\(001.216\):*:*:*:*:*:*:*099.016(001.216)VulnerableCisco
cpe:2.3:h:cisco:asa_5512-x:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:asa_5505_firmware:009.014\(001\):*:*:*:*:*:*:*009.014(001)VulnerableCisco
cpe:2.3:o:cisco:asa_5505_firmware:099.015\(001.033\):*:*:*:*:*:*:*099.015(001.033)VulnerableCisco
cpe:2.3:o:cisco:asa_5505_firmware:099.016\(001.216\):*:*:*:*:*:*:*099.016(001.216)VulnerableCisco
cpe:2.3:h:cisco:asa_5505:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
  • cpe:2.3:a:cisco:secure_firewall_threat_defense:*:*:*:*:*:*:*:* Versions 6.4.0 to before 6.4.0.13; 6.5.0 to before 6.6.5; 6.7.0 to before 6.7.0.1 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* Versions 9.14.0 to before 9.14.2.4; 9.15.0 to before 9.15.1.7 Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asa_5512-x_firmware:009.014\(001\):*:*:*:*:*:*:* Versions 009.014(001) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asa_5512-x_firmware:099.015\(001.033\):*:*:*:*:*:*:* Versions 099.015(001.033) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asa_5512-x_firmware:099.016\(001.216\):*:*:*:*:*:*:* Versions 099.016(001.216) Vulnerable ·Cisco
  • cpe:2.3:h:cisco:asa_5512-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:asa_5505_firmware:009.014\(001\):*:*:*:*:*:*:* Versions 009.014(001) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asa_5505_firmware:099.015\(001.033\):*:*:*:*:*:*:* Versions 099.015(001.033) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asa_5505_firmware:099.016\(001.216\):*:*:*:*:*:*:* Versions 099.016(001.216) Vulnerable ·Cisco
  • cpe:2.3:h:cisco:asa_5505:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
Show 24 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:cisco:asa_5515-x_firmware:009.014\(001\):*:*:*:*:*:*:*009.014(001)VulnerableCisco
cpe:2.3:o:cisco:asa_5515-x_firmware:099.015\(001.033\):*:*:*:*:*:*:*099.015(001.033)VulnerableCisco
cpe:2.3:o:cisco:asa_5515-x_firmware:099.016\(001.216\):*:*:*:*:*:*:*099.016(001.216)VulnerableCisco
cpe:2.3:h:cisco:asa_5515-x:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:asa_5525-x_firmware:009.014\(001\):*:*:*:*:*:*:*009.014(001)VulnerableCisco
cpe:2.3:o:cisco:asa_5525-x_firmware:099.015\(001.033\):*:*:*:*:*:*:*099.015(001.033)VulnerableCisco
cpe:2.3:o:cisco:asa_5525-x_firmware:099.016\(001.216\):*:*:*:*:*:*:*099.016(001.216)VulnerableCisco
cpe:2.3:h:cisco:asa_5525-x:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:asa_5545-x_firmware:009.014\(001\):*:*:*:*:*:*:*009.014(001)VulnerableCisco
cpe:2.3:o:cisco:asa_5545-x_firmware:099.015\(001.033\):*:*:*:*:*:*:*099.015(001.033)VulnerableCisco
cpe:2.3:o:cisco:asa_5545-x_firmware:099.016\(001.216\):*:*:*:*:*:*:*099.016(001.216)VulnerableCisco
cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:asa_5555-x_firmware:009.014\(001\):*:*:*:*:*:*:*009.014(001)VulnerableCisco
cpe:2.3:o:cisco:asa_5555-x_firmware:099.015\(001.033\):*:*:*:*:*:*:*099.015(001.033)VulnerableCisco
cpe:2.3:o:cisco:asa_5555-x_firmware:099.016\(001.216\):*:*:*:*:*:*:*099.016(001.216)VulnerableCisco
cpe:2.3:h:cisco:asa_5555-x:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:asa_5580_firmware:009.014\(001\):*:*:*:*:*:*:*009.014(001)VulnerableCisco
cpe:2.3:o:cisco:asa_5580_firmware:099.015\(001.033\):*:*:*:*:*:*:*099.015(001.033)VulnerableCisco
cpe:2.3:o:cisco:asa_5580_firmware:099.016\(001.216\):*:*:*:*:*:*:*099.016(001.216)VulnerableCisco
cpe:2.3:h:cisco:asa_5580:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
cpe:2.3:o:cisco:asa_5585-x_firmware:009.014\(001\):*:*:*:*:*:*:*009.014(001)VulnerableCisco
cpe:2.3:o:cisco:asa_5585-x_firmware:099.015\(001.033\):*:*:*:*:*:*:*099.015(001.033)VulnerableCisco
cpe:2.3:o:cisco:asa_5585-x_firmware:099.016\(001.216\):*:*:*:*:*:*:*099.016(001.216)VulnerableCisco
cpe:2.3:h:cisco:asa_5585-x:-:*:*:*:*:*:*:*not specified by NVDRunning onCisco
  • cpe:2.3:o:cisco:asa_5515-x_firmware:009.014\(001\):*:*:*:*:*:*:* Versions 009.014(001) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asa_5515-x_firmware:099.015\(001.033\):*:*:*:*:*:*:* Versions 099.015(001.033) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asa_5515-x_firmware:099.016\(001.216\):*:*:*:*:*:*:* Versions 099.016(001.216) Vulnerable ·Cisco
  • cpe:2.3:h:cisco:asa_5515-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:asa_5525-x_firmware:009.014\(001\):*:*:*:*:*:*:* Versions 009.014(001) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asa_5525-x_firmware:099.015\(001.033\):*:*:*:*:*:*:* Versions 099.015(001.033) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asa_5525-x_firmware:099.016\(001.216\):*:*:*:*:*:*:* Versions 099.016(001.216) Vulnerable ·Cisco
  • cpe:2.3:h:cisco:asa_5525-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:asa_5545-x_firmware:009.014\(001\):*:*:*:*:*:*:* Versions 009.014(001) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asa_5545-x_firmware:099.015\(001.033\):*:*:*:*:*:*:* Versions 099.015(001.033) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asa_5545-x_firmware:099.016\(001.216\):*:*:*:*:*:*:* Versions 099.016(001.216) Vulnerable ·Cisco
  • cpe:2.3:h:cisco:asa_5545-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:asa_5555-x_firmware:009.014\(001\):*:*:*:*:*:*:* Versions 009.014(001) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asa_5555-x_firmware:099.015\(001.033\):*:*:*:*:*:*:* Versions 099.015(001.033) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asa_5555-x_firmware:099.016\(001.216\):*:*:*:*:*:*:* Versions 099.016(001.216) Vulnerable ·Cisco
  • cpe:2.3:h:cisco:asa_5555-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:asa_5580_firmware:009.014\(001\):*:*:*:*:*:*:* Versions 009.014(001) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asa_5580_firmware:099.015\(001.033\):*:*:*:*:*:*:* Versions 099.015(001.033) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asa_5580_firmware:099.016\(001.216\):*:*:*:*:*:*:* Versions 099.016(001.216) Vulnerable ·Cisco
  • cpe:2.3:h:cisco:asa_5580:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco
  • cpe:2.3:o:cisco:asa_5585-x_firmware:009.014\(001\):*:*:*:*:*:*:* Versions 009.014(001) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asa_5585-x_firmware:099.015\(001.033\):*:*:*:*:*:*:* Versions 099.015(001.033) Vulnerable ·Cisco
  • cpe:2.3:o:cisco:asa_5585-x_firmware:099.016\(001.216\):*:*:*:*:*:*:* Versions 099.016(001.216) Vulnerable ·Cisco
  • cpe:2.3:h:cisco:asa_5585-x:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Cisco

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-34794
  2. 2026-10-03 Alias added: GHSA-24fh-2pfj-hp74

References

Advisory 1

  • TI-2025-14628 Buffer overflow in Cisco Secure Firewall Adaptive Security Appliance Software KEVCVSS 3.1CRITICAL 9.9
  • TI-2016-05454 Buffer overflow in Cisco Adaptive Security Appliance (ASA) Software through 9.4.2.3 on… KEVCVSS 3.1HIGH 8.8
  • TI-2023-06973 Authentication bypass in Cisco Adaptive Security Appliance Software KEVCVSS 3.1CRITICAL 9.1
  • TI-2026-82192 Denial of service in Cisco Secure Firewall ASA and FTD SSL VPN KEVCVSS 3.1HIGH 8.6
  • TI-2026-16533 Cisco Secure Firewall Adaptive Security Appliance and Secure Firewall Threat Defense… KEVCVSS 3.1HIGH 8.6
  • TI-2025-14657 Missing authorization in Cisco Secure Firewall Adaptive Security Appliance Software KEVCVSS 3.1HIGH 8.6
See all 354 →

Sources

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