Skip to main content

Firepower Threat Defense CVE-2021-34794

MEDIUM
Improper Access Control (CWE-284)
2021-10-27 psirt@cisco.com
Cisco Authentication Bypass Firepower Threat Defense Adaptive Security Appliance Software Asa 5512 X Firmware Asa 5505 Firmware Asa 5515 X Firmware Asa 5525 X Firmware Asa 5545 X Firmware Asa 5555 X Firmware Asa 5580 Firmware Asa 5585 X Firmware
5.3
CVSS 3.1 · NVD
Share

Severity by source

NVD PRIMARY
5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None

Lifecycle Timeline

1
CVE Published
Oct 27, 2021 - 19:15 nvd
MEDIUM 5.3

DescriptionNVD

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.

AnalysisAI

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). Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Technical ContextAI

This vulnerability is classified under CWE-284. 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. Affected products include: Cisco Firepower Threat Defense, Cisco Adaptive Security Appliance Software, Cisco Asa 5512-X Firmware, Cisco Asa 5505 Firmware, Cisco Asa 5515-X Firmware. Version information: version 3.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

More in Firepower Threat Defense

View all
CVE-2021-44228 CRITICAL POC
10.0 Dec 10

Apache Log4j2 contains a critical JNDI injection vulnerability known as 'Log4Shell' that allows unauthenticated remote c
CVE-2020-3452 HIGH POC
7.5 Jul 22

A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Th
CVE-2018-0296 HIGH POC
7.5 Jun 07

A vulnerability in the web interface of the Cisco Adaptive Security Appliance (ASA) could allow an unauthenticated, remo
CVE-2023-44487 HIGH POC
7.5 Oct 10

Denial of service against HTTP/2 server implementations allows remote unauthenticated attackers to exhaust server resour
CVE-2020-3580 MEDIUM POC
6.1 Oct 21

Multiple vulnerabilities in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Fir
CVE-2025-20362 HIGH POC
8.6 Sep 25

Unauthenticated remote access to restricted VPN web server endpoints in Cisco Secure ASA and Firepower Threat Defense (F
CVE-2020-3187 CRITICAL POC
9.1 May 06

A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Th
CVE-2020-3259 HIGH
7.5 May 06

A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Th
CVE-2018-0101 CRITICAL POC
10.0 Jan 29

A vulnerability in the Secure Sockets Layer (SSL) VPN functionality of the Cisco Adaptive Security Appliance (ASA) Softw
CVE-2024-20353 HIGH POC
8.6 Apr 24

Cisco ASA and FTD management and VPN web servers contain a vulnerability causing device reload through incomplete error

CVE-2025-20333 CRITICAL
9.9 Sep 25

A vulnerability in the VPN web server of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secu
CVE-2023-20269 CRITICAL
9.1 Sep 06

A vulnerability in the remote access VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower

Same weakness CWE-284 – Improper Access Control

View all
CVE-2012-4681 CRITICAL POC
9.8
CVE-2011-3544 CRITICAL POC
9.8
CVE-2012-1723 CRITICAL POC
9.8
CVE-2012-5076 CRITICAL POC
9.8
CVE-2014-3120 HIGH POC
8.1
CVE-2013-2423 LOW POC
3.7
CVE-2016-3427 CRITICAL
9.8
CVE-2025-12480 CRITICAL POC
9.1

Same technique Authentication Bypass

View all
CVE-2023-22515 CRITICAL POC
9.8
CVE-2012-4681 CRITICAL POC
9.8
CVE-2013-2465 CRITICAL POC
9.8
CVE-2011-3544 CRITICAL POC
9.8
CVE-2022-40684 CRITICAL POC
9.8
CVE-2025-61882 CRITICAL POC
9.8
CVE-2024-0012 CRITICAL POC
9.3
CVE-2023-46805 HIGH POC
8.2

Share

CVE-2021-34794 vulnerability details – vuln.today
Back

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy